进出口参考工具
HS 编码参考查询
输入编码（如 8518 或 8518.30.20.00）或英文商品名，查看官方税则描述与编码层级；一个描述命中多个候选分类时会全部列出，由你或报关行对照商品材质、用途等细节判断。
参考查询不等于海关归类裁定；页面税率为美国进口税率参考，不是进口到中国或其他国家应缴的税率。
数字（带点不带点都行）按编码前缀查；文字按官方英文描述查。数据只有英文——输中文会明确提示，不会替你猜码。
第 90章 — Optical, photographic, cinematographic, measuring, checking, precision, medical or surgical instruments and apparatus; parts and accessories thereof · 大类 XVIII
条目: 570
| 编码 | 层级 | 官方描述 | 计量单位 | 美国税率（最惠/协定/2栏） |
|---|---|---|---|---|
| 9027.90.68.00 | 美国 10 位 | Other | kg | Free / — / 50% |
| 9027.90.84.00 | 美国 10 位 | Of instruments and apparatus of subheading 9027.20, 9027.30, 9027.50, 9027.81 or 9027.89 | kg | Free / — / 40% |
| 9027.90.88.00 | 美国 10 位 | Other | kg | Free / — / 40% |
| 9028 | HS4 税目 | Gas, liquid or electricity supply or production meters, including calibrating meters thereof; parts and accessories thereof: | — | |
| 9028.10.00.00 | 美国 10 位 | Gas meters | No. | 16¢ each + 2.5% / Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) / $4.50 each + 65% |
| 9028.20.00.00 | 美国 10 位 | Liquid meters | No. | 16¢ each + 2.5% / Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) / $4.50 each + 65% |
| 9028.30.00.00 | 美国 10 位 | Electricity meters | No. | Free / — / $4.50 each + 65% |
| 9028.90.00 | 美国 8 位 | Parts and accessories | Free / — / 65% | |
| 9028.90.00.40 | 美国 10 位 | Of electricity meters | kg | — |
| 9028.90.00.80 | 美国 10 位 | Other | kg | — |
| 9029 | HS4 税目 | Revolution counters, production counters, taximeters, odometers, pedometers and the like; speedometers and tachometers, other than those of heading 9014 or 9015; stroboscopes; parts and accessories thereof: | — | |
| 9029.10 | HS6 子目 | Revolution counters, production counters, taximeters, odometers, pedometers and the like: | — | |
| 9029.10.40.00 | 美国 10 位 | Taximeters | No. | 5.3% / Free (A,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) / 85% |
| 9029.10.80.00 | 美国 10 位 | Other | No. | Free / — / 35% |
| 9029.20 | HS6 子目 | Speedometers and tachometers; stroboscopes: | — | |
| 9029.20.20.00 | 美国 10 位 | Bicycle speedometers | No. | 6% / Free (A+,AU,BH,CL,CO,D,E,IL, JO,KR,MA, OM,P,PA,PE,S,SG) / 110% |
| 9029.20.40 | 美国 8 位 | Other speedometers and tachometers | Free / — / 35% | |
| 9029.20.40.40 | 美国 10 位 | For use in civil aircraft | No. | — |
| 9029.20.40.80 | 美国 10 位 | Other | No. | — |
| 9029.20.60.00 | 美国 10 位 | Stroboscopes | No. | 16¢ each + 2.5% / Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) / $4.50 each + 65% |
| 9029.90 | HS6 子目 | Parts and accessories: | — | |
| 9029.90.20.00 | 美国 10 位 | Of taximeters | kg | 5.3% / Free (A,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) / 85% |
| 9029.90.40.00 | 美国 10 位 | Of bicycle speedometers | kg | 6% / Free (A+,AU,BH,CL,CO,D,E,IL, JO,KR,MA, OM,P,PA,PE,S,SG) / 110% |
| 9029.90.60.00 | 美国 10 位 | Of stroboscopes | kg | 3.2% / Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) / 65% |
| 9029.90.80 | 美国 8 位 | Other | Free / — / 35% | |
| 9029.90.80.40 | 美国 10 位 | Of speedometers and tachometers | kg | — |
| 9029.90.80.80 | 美国 10 位 | Other | kg | — |
| 9030 | HS4 税目 | Oscilloscopes, spectrum analyzers and other instruments and apparatus for measuring or checking electrical quantities, excluding meters of heading 9028; instruments and apparatus for measuring or detecting alpha, beta, gamma, X-ray, cosmic or other ionizing radiations; parts and accessories thereof: | — | |
| 9030.10.00.00 | 美国 10 位 | Instruments and apparatus for measuring or detecting ionizing radiations | No. | Free / — / 40% |
| 9030.20 | HS6 子目 | Oscilloscopes and oscillographs: | — | |
| 9030.20.05.00 | 美国 10 位 | Specially designed for telecommunications | No. | Free / — / 40% |
| 9030.20.10.00 | 美国 10 位 | Other oscilloscopes and oscillographs | No. | Free / — / 40% |
| 9030.31.00.00 | 美国 10 位 | Multimeters, without a recording device | No. | Free / — / 40% |
| 9030.32.00.00 | 美国 10 位 | Multimeters, with a recording device | No. | Free / — / 40% |
| 9030.33 | HS6 子目 | Other, without a recording device: | — | |
| 9030.33.34.00 | 美国 10 位 | Resistance measuring instruments | No. | 1.7% / Free (A*,AU,B,BH,C,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) / 40% |
| 9030.33.38.00 | 美国 10 位 | Other | No. | Free / — / 40% |
| 9030.39.01.00 | 美国 10 位 | Other, with a recording device | No. | Free / — / 40% |
| 9030.40.00.00 | 美国 10 位 | Other instruments and apparatus, specially designed for telecommunications (for example, cross-talk meters, gain measuring instruments, distortion factor meters, psophometers) | No. | Free / — / 40% |
| 9030.82.00.00 | 美国 10 位 | For measuring or checking semiconductor wafers or devices (including integrated circuits) | No. | Free / — / 40% |
| 9030.84.00.00 | 美国 10 位 | Other, with a recording device | No. | Free / — / 40% |
| 9030.89.01.00 | 美国 10 位 | Other | No. | Free / — / 40% |
| 9030.90 | HS6 子目 | Parts and accessories: | — | |
| 9030.90.25.00 | 美国 10 位 | Printed circuit assemblies | No. | Free / — / 40% |
| 9030.90.46.00 | 美国 10 位 | Other | kg, No. | Free / — / 40% |
| 9030.90.66.00 | 美国 10 位 | Of instruments and apparatus of subheading 9030.40 or 9030.82 | No. | Free / — / 40% |
| 9030.90.68.00 | 美国 10 位 | Other | No. | Free / — / 40% |
| 9030.90.84.00 | 美国 10 位 | Of instruments and apparatus of subheading 9030.82 | kg | Free / — / 40% |
| 9030.90.89 | 美国 8 位 | Other | Free / — / 40% | |
| 9030.90.89.11 | 美国 10 位 | Of articles of subheading 9030.20 | kg | — |
| 9030.90.89.21 | 美国 10 位 | Of articles of subheading 9030.31 | kg | — |
| 9030.90.89.22 | 美国 10 位 | Of articles of subheading 9030.32 | kg | — |
| 9030.90.89.23 | 美国 10 位 | Of articles of subheading 9030.33 | kg | — |
| 9030.90.89.31 | 美国 10 位 | Of articles of subheading 9030.39 | kg | — |
| 9030.90.89.40 | 美国 10 位 | Of articles of subheading 9030.40 | kg | — |
| 9030.90.89.56 | 美国 10 位 | Of articles of subheading 9030.84 | kg | — |
| 9030.90.89.61 | 美国 10 位 | Other | kg | — |
| 9031 | HS4 税目 | Measuring or checking instruments, appliances and machines, not specified or included elsewhere in this chapter; profile projectors; parts and accessories thereof: | — | |
| 9031.10.00.00 | 美国 10 位 | Machines for balancing mechanical parts | No. | Free / — / 40% |
| 9031.20.00.00 | 美国 10 位 | Test benches | No. | 1.7% / Free (A*,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) / 45% |
| 9031.41.00 | 美国 8 位 | For inspecting semiconductor wafers or devices (including integrated circuits) or for inspecting photomasks or reticles used in manufacturing semiconductor devices (including integrated circuits) | Free / — / 50% | |
| 9031.41.00.20 | 美国 10 位 | For inspecting photomasks or reticles used in manufacturing semiconductor devices | No. | — |
| 9031.41.00.40 | 美国 10 位 | For wafers | No. | — |
| 9031.41.00.60 | 美国 10 位 | Other | No. | — |
| 9031.49 | HS6 子目 | Other: | — | |
| 9031.49.10.00 | 美国 10 位 | Profile projectors | No. | Free / — / 45% |
| 9031.49.40.00 | 美国 10 位 | Coordinate-measuring machines | No. | Free / — / 50% |
| 9031.49.70.00 | 美国 10 位 | For inspecting masks (other than photomasks) used in manufacturing semiconductor devices; for measuring surface particulate contamination on semiconductor devices | No. | Free / — / 50% |
| 9031.49.90.00 | 美国 10 位 | Other | No. | Free / — / 50% |
| 9031.80 | HS6 子目 | Other instruments, appliances and machines: | — | |
| 9031.80.40.00 | 美国 10 位 | Electron beam microscopes fitted with equipment specifically designed for the handling and transport of semiconductor wafers or reticles | No. | Free / — / 40% |
| 9031.80.80 | 美国 8 位 | Other | Free / — / 40% * | |
| 9031.80.80.60 | 美国 10 位 | For testing electrical characteristics | kg | — |
| 9031.80.80.70 | 美国 10 位 | Other | kg | — |
| 9031.80.80.85 | 美国 10 位 | Other | kg | — |
| 9031.90 | HS6 子目 | Parts and accessories: | — | |
| 9031.90.21.00 | 美国 10 位 | Of profile projectors | kg | Free / — / 45% |
| 9031.90.45.00 | 美国 10 位 | Bases and frames for the coordinate-measuring machines of subheading 9031.49.40 | kg | Free / — / 50% |
| 9031.90.54.00 | 美国 10 位 | Of optical instruments and appliances of subheading 9031.41 or 9031.49.70 | kg | Free / — / 50% |
| 9031.90.59.00 | 美国 10 位 | Other | kg | Free / — / 50% |
| 9031.90.70.00 | 美国 10 位 | Of articles of subheading 9031.80.40 | kg | Free / — / 40% |
| 9031.90.91 | 美国 8 位 | Other | Free / — / 40% * | |
| 9031.90.91.30 | 美国 10 位 | Of machines for balancing mechanical parts | kg | — |
| 9031.90.91.60 | 美国 10 位 | Of test benches | kg | — |
| 9031.90.91.95 | 美国 10 位 | Other | kg | — |
| 9032 | HS4 税目 | Automatic regulating or controlling instruments and apparatus; parts and accessories thereof: | — | |
| 9032.10.00 | 美国 8 位 | Thermostats | 1.7% / Free (A,AU,B,BH,C,CL,CO,D,E,IL,JO,JP,KR,MA,OM,P,PA,PE,S,SG) / 40% | |
| 9032.10.00.30 | 美国 10 位 | Designed for wall mounting | No. | — |
| 9032.10.00.60 | 美国 10 位 | Other | No. | — |
| 9032.10.00.90 | 美国 10 位 | Other | No. | — |
| 9032.20.00.00 | 美国 10 位 | Manostats | No. | Free / — / 35% |
| 9032.81.00 | 美国 8 位 | Hydraulic and pneumatic | Free / — / 35% | |
| 9032.81.00.20 | 美国 10 位 | Hydraulic | No. | — |
| 9032.81.00.60 | 美国 10 位 | Pneumatic | No. | — |
| 9032.81.00.80 | 美国 10 位 | Other | No. | — |
| 9032.89 | HS6 子目 | Other: | — | |
| 9032.89.20.00 | 美国 10 位 | Designed for use in a 6, 12 or 24 V system | No. | 1.1% / Free (A,AU,B,BH,C,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) / 25% |
| 9032.89.40.00 | 美国 10 位 | Other | No. | 1.7% / Free (A,AU,BH,C,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) / 35% |
| 9032.89.60 | 美国 8 位 | Other | 1.7% / Free (A,AU,B,BH,C,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) / 40% | |
| 9032.89.60.15 | 美国 10 位 | Complete systems | No. | — |
| 9032.89.60.25 | 美国 10 位 | Other | No. | — |
| 9032.89.60.30 | 美国 10 位 | Complete systems | No. | — |
| 9032.89.60.40 | 美国 10 位 | Temperature control instruments | No. | — |
| 9032.89.60.50 | 美国 10 位 | Pressure and draft control instruments | No. | — |
| 9032.89.60.60 | 美国 10 位 | Flow and liquid level control instruments | No. | — |
| 9032.89.60.70 | 美国 10 位 | Humidity control instruments | No. | — |
| 9032.89.60.75 | 美国 10 位 | Other | kg | — |
| 9032.89.60.85 | 美国 10 位 | Other | kg | — |
| 9032.90 | HS6 子目 | Parts and accessories: | — | |
| 9032.90.21.00 | 美国 10 位 | Designed for use in a 6, 12 or 24 V system | kg | 1.1% / Free (A,AU,B,BH,C,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) / 25% |
| 9032.90.41.00 | 美国 10 位 | Other | kg | 1.7% / Free (A,AU,BH,C,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) / 35% |
| 9032.90.61 | 美国 8 位 | Other | 1.7% / Free (A,AU,B,BH,C,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) / 40% | |
| 9032.90.61.20 | 美国 10 位 | Of thermostats | kg | — |
| 9032.90.61.40 | 美国 10 位 | Of manostats | kg | — |
| 9032.90.61.60 | 美国 10 位 | Of instruments and apparatus of subheading 9032.81 | kg | — |
| 9032.90.61.80 | 美国 10 位 | Other | kg | — |
| 9033.00 | HS6 子目 | Parts and accessories (not specified or included elsewhere in this chapter) for machines, appliances, instruments or apparatus of chapter 90: | — | |
| 9033.00.20.00 | 美国 10 位 | Light-emitting diode (LED) backlights modules, the foregoing which are lighting sources that consist of one or more LEDs and one or more connectors and are mounted on a printed circuit or other similar substrate, and other passive components, whether or not combined with optical components or protective diodes, and used as backlights illumination for liquid crystal displays (LCDs) | No. | Free / — / 40% |
| 9033.00.30.00 | 美国 10 位 | Touch-sensitive data input devices (so-called “touch screens”) without display capabilities, for incorporation into apparatus having a display, which function by detecting the presence and location of a touch within the display area (such sensing may be obtained by means of resistance, electrostatic capacity, acoustic pulse recognition, infrared lights or other touch-sensitive technology) | No. | Free / — / 40% |
| 9033.00.90.00 | 美国 10 位 | Other | kg | 4.4% / Free (A*,AU,B,BH,C,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) / 40% |
按章节浏览
HS 第 01–97 章（美国第 98/99 章属本国立法，未收录）。
大类 I — Live Animals; Animal Products
大类 II — Vegetable Products
- 06 Live trees and other plants; bulbs, roots and the like; cut flowers and ornamental foliage
- 07 Edible vegetables and certain roots and tubers
- 08 Edible fruit and nuts; peel of citrus fruit or melons
- 09 Coffee, tea, maté and spices
- 10 Cereals
- 11 Products of the milling industry; malt; starches; inulin; wheat gluten
- 12 Oil seeds and oleaginous fruits; miscellaneous grains, seeds and fruit; industrial or medicinal plants; straw and fodder
- 13 Lac; gums; resins and other vegetable saps and extracts
- 14 Vegetable plaiting materials; vegetable products not elsewhere specified or included
大类 III — Animal, Vegetable Or Microbial Fats And Oils And Their Cleavage Products; Prepared Edible Fats; Animal Or Vegetable Waxes
大类 IV — Prepared Foodstuffs; Beverages, Spirits And Vinegar; Tobacco And Manufactured Tobacco Substitutes; Products, Whether Or Not Containing Nicotine, Intended For Inhalation Without Combustion; Other Nicotine Containing Products Intended For The Intake Of Nicotine Into The Human Body
- 16 Preparations of meat, of fish, of crustaceans, molluscs or other aquatic invertebrates, or of insects
- 17 Sugars and sugar confectionery
- 18 Cocoa and cocoa preparations
- 19 3 Preparations of cereals, flour, starch or milk; bakers' wares
- 20 Preparations of vegetables, fruit, nuts or other parts of plants
- 21 Miscellaneous edible preparations
- 22 Beverages, spirits and vinegar
- 23 Residues and waste from the food industries; prepared animal feed
- 24 Tobacco and manufactured tobacco substitutes; products whether or not containing nicotine, intended for inhalation without combustion; other nicotine containing products intended for the intake of nicotine into the human body
大类 V — Mineral Products
大类 VI — Products Of The Chemical Or Allied Industries
- 28 Inorganic chemicals; organic or inorganic compounds of precious metals, of rare-earth metals, of radioactive elements or of isotopes
- 29 Organic chemicals
- 30 Pharmaceutical products
- 31 Fertilizers
- 32 Tanning or dyeing extracts; tannins and their derivatives; dyes, pigments and other coloring matter; paints and varnishes; putty and other mastics; inks
- 33 Essential oils and resinoids; perfumery, cosmetic or toilet preparations
- 34 Soap, organic surface-active agents, washing preparations, lubricating preparations, artificial waxes, prepared waxes, polishing or scouring preparations, candles and similar articles, modeling pastes,"dental waxes" and dental preparations with a basis of plaster
- 35 4 Albuminoidal substances; modified starches; glues; enzymes
- 36 Explosives; pyrotechnic products; matches; pyrophoric alloys; certain combustible preparations
- 37 Photographic or cinematographic goods
- 38 Miscellaneous chemical products
大类 VII — Plastics And Articles Thereof; Rubber And Articles Thereof
大类 VIII — Raw Hides And Skins, Leather, Furskins And Articles Thereof; Saddlery And Harness; Travel Goods, Handbags And Similar Containers; Articles Of Animal Gut (Other Than Silkworm Gut)
大类 IX — Wood And Articles Of Wood; Wood Charcoal; Cork And Articles Of Cork; Manufactures Of Straw, Of Esparto Or Of Other Plaiting Materials; Basketware And Wickerwork
大类 X — Pulp Of Wood Or Of Other Fibrous Cellulosic Material; Recovered (Waste And Scrap) Paper Or Paperboard; Paper And Paperboard And Articles Thereof
大类 XI — Textiles And Textile Articles
- 50 Silk
- 51 Wool, fine or coarse animal hair; horsehair yarn and woven fabric
- 52 Cotton
- 53 Other vegetable textile fibers; paper yarn and woven fabrics of paper yarn
- 54 Man-made filaments; strip and the like of man-made textile materials
- 55 Man-made staple fibers
- 56 Wadding, felt and nonwovens; special yarns; twine, cordage, ropes and cables and articles thereof
- 57 Carpets and other textile floor coverings
- 58 Special woven fabrics; tufted textile fabrics; lace; tapestries; trimmings; embroidery
- 59 Impregnated, coated, covered or laminated textile fabrics; textile articles of a kind suitable for industrial use
- 60 Knitted or crocheted fabrics
- 61 Articles of apparel and clothing accessories, knitted or crocheted
- 62 Articles of apparel and clothing accessories, not knitted or crocheted
- 63 Other made up textile articles; needlecraft sets; worn clothing and worn textile articles; rags
大类 XII — Footwear, Headgear, Umbrellas, Sun Umbrellas, Walking-Sticks, Seat-Sticks, Whips, Riding-Crops And Parts Thereof; Prepared Feathers And Articles Made Therewith; Artificial Flowers; Articles Of Human Hair
大类 XIII — Articles Of Stone, Plaster, Cement, Asbestos, Mica Or Similar Materials; Ceramic Products; Glass And Glassware
大类 XIV — Natural Or Cultured Pearls, Precious Or Semiprecious Stones, Precious Metals, Metals Clad With Precious Metal, And Articles Thereof; Imitation Jewelry; Coin
大类 XV — Base Metals And Articles Of Base Metal
- 72 Iron and steel
- 73 Articles of iron or steel
- 74 Copper and articles thereof
- 75 7 Nickel and articles thereof
- 76 Aluminum and articles thereof
- 77 (Reserved for possible future use)
- 78 Lead and articles thereof
- 79 Zinc and articles thereof
- 80 Tin and articles thereof
- 81 Other base metals; cermets; articles thereof
- 82 Tools, implements, cutlery, spoons and forks, of base metal; parts thereof of base metal
- 83 Miscellaneous articles of base metal
大类 XVI — Machinery And Mechanical Appliances; Electrical Equipment; Parts Thereof; Sound Recorders And Reproducers, Television Image And Sound Recorders And Reproducers, And Parts And Accessories Of Such Articles
大类 XVII — Vehicles, Aircraft, Vessels And Associated Transport Equipment
- 86 Railway or tramway locomotives, rolling stock and parts thereof; railway or tramway track fixtures and fittings and parts thereof; mechanical (including electro-mechanical) traffic signaling equipment of all kinds
- 87 Vehicles other than railway or tramway rolling stock, and parts and accessories thereof
- 88 Aircraft, spacecraft, and parts thereof
- 89 Ships, boats and floating structures
大类 XVIII — Optical, Photographic, Cinematographic, Measuring, Checking, Precision, Medical Or Surgical Instruments And Apparatus; Clocks And Watches; Musical Instruments; Parts And Accessories Thereof
大类 XIX — Arms And Ammunition; Parts And Accessories Thereof
大类 XX — Miscellaneous Manufactured Articles
- 94 Furniture; bedding, mattresses, mattress supports, cushions and similar stuffed furnishings; luminaires and lighting fittings, not elsewhere specified or included; illuminated signs, illuminated nameplates and the like; prefabricated buildings
- 95 Toys, games and sports equipment; parts and accessories thereof
- 96 Miscellaneous manufactured articles
大类 XXI — Works Of Art, Collectors' Pieces And Antiques
数据覆盖范围与边界
- 国际层：HS 01–97 章、4 位税目、6 位子目（HS 2022 版）——各成员国税则共用的部分。
- 美国层：美国 HTS 的 8 位税率行与 10 位统计后缀，均带标识；税率列为美国进口税率，仅供参考。
- 中国层：《2026 年进出口税则》8 位税则号列、官方中文品名与最惠国/普通税率，按国际 HS 前 6 位关联展示；暂定税率（△ 只保留原文标示）、协定/特惠/配额税率、进口环节增值税消费税与海关 10 位编号不在本轮范围。
- 不收录：欧盟 8 位 CN 码、其他国家扩展位、WCO 品目注释（版权受限）以及美国第 98/99 章。
- 商品描述为英文。实物归类要按归类总规则结合材质、成分、用途、加工程度判断——每条结果都是候选，不是裁定。
官方核查入口
正式申报、预归类或查实时税率，请走官方渠道：
常见问题
这个查到的编码能直接拿去报关吗？
不能。这里是参考查询：候选编码、官方描述和层级仅供参考，不等于海关归类裁定。正式归类要按归类总规则对照商品材质、成分、用途和加工程度，必要时向海关申请预归类裁定。
为什么一个商品名会搜出好几个编码？
正常现象。同一描述在不同层级（税目/子目/统计后缀）和不同类目下都可能出现——比如 cotton 在纱线、织物、服装各章都有条目。工具列出全部候选，不会替你猜唯一答案。
页面上 8 位、10 位编码是哪国的？
国际 HS 只统一前六位（章 2 位 + 税目 4 位 + 子目 6 位）。这里的 8 位/10 位是美国 HTS 的国家扩展编码，已明确标注；中国用 8 位税则号列，欧盟用 8 位 CN 码，都不在本数据里。
显示的税率是到中国要交的关税吗？
不是。税率列是美国进口税（General 最惠国 / Special 协定 / Column 2），只适用于向美国进口，仅供横向参考；进口到中国或其他国家的税率要去对应官方渠道查询。
中文搜的结果准确吗？
中文词按《2026 年进出口税则》官方中文品名逐字匹配，不机翻、不猜码；命中的是官方文本里出现过的名称。口语化叫法可能匹配不到，换更正式的品名或英文名再试。
数据多久更新一次？
数据快照来自美国 USITC 发布的 2026 HTS Revision 22（2026-10-30 生效），页面会显示版本和生效日期；版本过旧时会有提示。正式申报请以官方实时查询为准。