Chapter 74 covers copper and copper articles, including copper mattes, unrefined copper, refined copper, copper alloys, copper materials (such as bars, rods, profiles, wire, plates, sheets, strip, foil, tubes) and copper finished products (such as nails, bolts, nuts, washers, etc.). This chapter does not include copper ores, copper concentrates (Chapter 26), copper alloy coins (Chapter 71) or copper parts for machines (which must be classified under Chapters 84/85 etc. according to the type of machine). Heading 7415 covers copper fasteners, including copper nails, copper tacks, copper nuts, copper bolts, copper screws, copper washers and similar articles. These goods are usually used for mechanical connection, sealing or fastening, and the material must be copper or copper alloy. Does not include copper springs (other headings of Chapter 74 or Chapter 85) or copper chains (other headings of Chapter 74). The first 2 digits 74 = Chapter 74 (copper and copper articles), indicating the material of the goods is copper or copper alloy. The 3rd-4th digits 15 = heading 7415 (copper fasteners), covering copper nails, nuts, washers, etc. The 5th-6th digits 29 = subheading 741529 (other copper washers), where 'other' means copper washers not named in 741521 to 741528. 741521 is copper spring washers, 741522 is other washers (non-spring), but 741529 specifically refers to other copper washers not elsewhere named, usually including flat washers, sealing washers, etc. This good is a copper washer, used to distribute pressure, seal or prevent loosening. If it is a spring washer, it should be classified under 741521; if it is another washer but made of copper and not specifically named, it is classified under 741529. If it is an iron or steel washer, it should be classified under 7318; if it is other metal (such as aluminum), it is classified under 7616. Therefore, being made of copper and not a spring washer is the key to classification under 741529.

Product name: The standard name of the declared goods, which should reflect the material and use, such as 'copper washer', 'brass flat washer'. Material: Specific copper alloy type, such as pure copper, brass, bronze, cupronickel, etc., must conform to the HS definition of material. Type: Washer type, such as flat washer, spring washer, sealing washer, etc. Spring washers should be classified under 741521. Use: Usage scenario, such as for bolt fastening, pipeline sealing, electronic equipment, etc. Specification and dimensions: Inner diameter, outer diameter, thickness and other dimensional parameters, in millimeters. Brand: Manufacturer or brand name; if no brand, fill in 'none'. Model: Product model or part number for easy identification. Product name: Brass flat washer; Material: Brass (copper-zinc alloy); Type: Flat washer; Use: For fastening bolts in automobile engines; Specification and dimensions: Inner diameter 10mm, outer diameter 20mm, thickness 2mm; Brand: XYZ; Model: W-1020. Misclassifying spring washers under 741529, when they should actually be classified under 741521. Declaring the material as 'copper' but it is actually copper alloy; the alloy composition must be specified. Ignoring dimensions and specifications, causing customs to be unable to determine whether it falls within the scope of washers.

The core basis for classification is the Import and Export Tariff and the HS Explanatory Notes. Subheading 741529 applies to other copper washers, that is, copper washers other than spring washers (741521) and other specifically named articles under heading 7415. When determining, it is necessary to confirm that the material is copper or copper alloy and that the function is as a washer (used to distribute pressure, seal or prevent loosening). If made of iron or steel, it is classified under 7318; if made of other metals, it is classified under the corresponding heading. 741521 Copper spring washers: Spring washers have elasticity and are used to prevent loosening; while 741529 is other washers, such as flat washers, with no elasticity requirement. 741522 Other copper washers (non-spring): 741522 is a specifically named subheading for other copper washers, but 741529 is an 'other' subheading; usually 741522 already covers common non-spring washers, and the subheading structure must be checked. 7318 Iron or steel fasteners: Different material; 7318 is iron or steel, 741529 is copper. 7616 Other articles of aluminum: Material is aluminum, while 741529 is copper. 8484 Gaskets and similar joints of metal sheeting: 8484 is for machine gaskets, usually composed of multiple materials, while 741529 is a single copper washer. Is the material copper or copper alloy? Is it a spring washer? If so, it should be classified under 741521. Does it fall under other named articles of heading 7415? Is it used for machine sealing? If so, it may be classified under 8484. Are the dimensions and specifications complete?

How to check the import tariff rate for 741529? It can be checked through the official website of the General Administration of Customs, China International Trade Single Window, or the Import and Export Tariff. The rate varies by country, trade agreement (such as RCEP) and origin; it is recommended to rely on the customs system feedback at the time of declaration. What is the difference in classification between copper washers and copper spring washers? Copper spring washers are classified under 741521 because they have elastic anti-loosening function; other copper washers (such as flat washers) are classified under 741529. When declaring, the type must be accurately described to avoid confusion. If a copper washer is used for sealing, is it still classified under 741529? If the copper washer is used as a machine gasket and is combined with other materials, it may be classified under 8484. But if it is a single copper washer, it is still classified under 741529. It must be determined according to actual use and structure. How should the declaration element 'Material' be filled in during customs declaration? The specific copper alloy type should be filled in, such as brass, pure copper, bronze, etc., and it cannot be written only as 'copper'. At the same time, the content of each component should be indicated, such as copper-zinc alloy (60% copper, 40% zinc). What is the difference between 741529 and 741522? 741522 is a specifically named subheading for 'other copper washers', but according to the HS structure, 741529 is an 'other' subheading; usually 741522 already covers non-spring washers, and actual classification requires checking the subheading notes. It is recommended to rely on customs classification decisions. What special documents are required for exporting copper washers? Generally, a packing list, invoice, contract, customs declaration form, etc. are required. If export tax rebate is involved, a special VAT invoice must be provided. Some countries may require a certificate of origin. How to determine whether a copper washer falls under 741529? First confirm the material is copper, then confirm it is not a spring washer, and finally check whether it is named under other subheadings of 7415. If none apply, it is classified under 741529. For cross-border e-commerce sales of copper washers, how can declaration be simplified? It can be declared under the cross-border e-commerce retail export model, and order, payment, logistics and other information must be provided. It is recommended to use a simplified declaration list, but the HS code and declaration elements must be filled in accurately.