Chapter 90 covers optical, photographic, cinematographic, measuring, checking, medical or surgical instruments and apparatus; precision instruments and apparatus; parts and accessories thereof. This chapter has a broad scope, ranging from simple magnifying glasses to complex electronic medical devices, but the core is instruments with precision technical functions. Note that this chapter does not include instruments for certain specific uses (such as machines of Chapter 84), nor does it include general-purpose parts imported separately (such as bolts and nuts), unless they are clearly dedicated to instruments of this chapter. Heading 9017 covers drawing, marking-out or mathematical calculating instruments (for example, drafting machines, pantographs, protractors, drawing tools, slide rules, disc calculators); hand-held instruments for measuring length, angle, etc., not elsewhere specified in this chapter (for example, micrometers, calipers, gauges); parts and accessories of the foregoing. This heading mainly targets manual or non-electric basic measuring and drawing tools, but includes electric drafting machines, etc. The first 2 digits 90: indicates Chapter 90, which belongs to the chapter on optical, measuring, medical and other precision instruments. The 3rd-4th digits 17: indicates heading 9017, specifically drawing, marking-out or mathematical calculating instruments, and hand-held instruments for measuring length, etc. The 5th-6th digits 90: indicates subheading 901790, i.e., 'parts and accessories' under heading 9017. Therefore, the full meaning of 901790 is: under Chapter 90 (precision instruments), in heading 9017 (drawing, measuring, etc. instruments), subheading 901790 specifically refers to parts and accessories of these instruments. Note that this subheading is a residual subheading, covering all parts not named in other subheadings. The goods are parts for vehicle-mounted drawing tools, belonging to dedicated parts of drawing tools. Since drawing tools themselves are classified under 9017 (such as drafting machines, protractors, etc.), their parts should be classified under the parts subheading 901790 of the same heading. They cannot be classified under parts of other headings, such as machine parts of Chapter 84, because vehicle-mounted drawing tools are manual or non-electric instruments, and Chapter 90 has an explicit heading. They also cannot be classified as vehicle parts (Chapter 87), because their function is drawing rather than vehicle operation components.

Product name: The specific name of the declared commodity, which should accurately reflect the purpose and material of the part, such as 'bracket for vehicle-mounted drawing tool'. Purpose: Explain that the part is dedicated to vehicle-mounted drawing tools, and describe its function in the drawing process, such as fixing, adjusting, etc. Material: Declare the main material of the part, such as aluminum alloy, stainless steel, engineering plastics, etc., which affects classification and valuation. Brand: Fill in the brand or trademark of the part; if no brand, indicate 'no brand'. Model: Fill in the model or specification of the part to facilitate customs identification and valuation. Whether dedicated to vehicle-mounted drawing tools: Clarify whether the part is dedicated to vehicle-mounted drawing tools or can be used for other equipment. Composition content: For composite material parts, declare the percentage content of each component. Product name: aluminum alloy bracket for vehicle-mounted drawing tool; Purpose: dedicated to vehicle-mounted drawing instrument, used to fix the drawing board; Material: aluminum alloy; Brand: no brand; Model: CZ-2024; Whether dedicated to vehicle-mounted drawing tools: yes; Composition content: aluminum 95%, magnesium 5%. Mistakenly classifying vehicle-mounted drawing tool parts as vehicle parts (8708), ignoring their drawing function. Failure to declare dedication, resulting in classification as general-purpose parts (such as 7326 iron or steel articles). Incorrect material declaration, declaring plastic parts as metal, causing classification disputes.

Core basis for classification: the part must be dedicated to drawing tools of heading 9017, and itself is not a commodity more specifically named in another heading. According to General Rules of Interpretation 1 and 6, parts are classified together with the main machine, unless the part itself constitutes a complete article of another heading. Vehicle-mounted drawing tools belong to 9017, and their dedicated parts should be classified under 901790. If the part is a general-purpose item (such as standard screws), it is classified according to material. 901720 Other drawing, marking-out or mathematical calculating instruments: 901720 is the complete drawing tool, while 901790 is its parts. If a complete drawing tool is imported, it should be classified under 901720; if it is a part, it is classified under 901790. 870899 Other parts for vehicles: 870899 is used for vehicle operation or structural parts, while vehicle-mounted drawing tool parts are accessories for the drawing function and do not constitute essential vehicle components, so they are not classified under 8708. 848790 Other machine parts: 848790 covers machine parts, but drawing tools are instruments, not machines, and 9017 has a more specific heading, so they are preferentially classified under 901790. 903190 Other parts of measuring or checking instruments: 9031 is for measuring instruments not elsewhere specified, while 9017 is a specifically named heading for drawing instruments, so drawing tool parts are not classified under 9031. 392690 Other articles of plastics: If the part is made of plastic and is not dedicated, it may be classified under 3926; but if it is dedicated to drawing tools, it should still be classified under 901790. Is the part dedicated to drawing tools of 9017? Is the part more specifically named in another heading? Does the part constitute a complete machine characteristic? Does the material affect classification? Is it a general-purpose part?

Which HS code should vehicle-mounted drawing tool parts be classified under? They should be classified under 901790. Because vehicle-mounted drawing tools themselves belong to heading 9017 (drawing instruments), their dedicated parts should be classified under the parts subheading 901790 of the same heading. Note that if the part is a general-purpose item, it is classified according to material. How to determine whether a part is dedicated to vehicle-mounted drawing tools? Based on the design, function and use scenario of the part. If the part can only be used for vehicle-mounted drawing tools and has no other use, it is considered dedicated. For example, a specially shaped bracket only fits a vehicle-mounted drawing instrument. If the vehicle-mounted drawing tool part is made of plastic, can it still be classified under 901790? Yes, as long as the part is dedicated to drawing tools of 9017, regardless of material, it is classified under 901790. However, if the plastic part is a general-purpose item (such as a standard gasket), it should be classified as a plastic article under Chapter 39. What is the difference between 901790 and 901720? 901720 is the complete drawing tool, such as drafting machines, protractors; 901790 is the parts of these tools. Imported complete machines are classified under 901720, imported parts under 901790. What declaration elements are required when declaring 901790? Product name, purpose, material, brand, model, whether dedicated to vehicle-mounted drawing tools, composition content, etc. are required. Specific requirements are subject to customs; it is recommended to refer to the 'Customs Import and Export Commodity Specification Declaration Catalog of the People's Republic of China'. Could vehicle-mounted drawing tool parts possibly be classified as vehicle parts? Generally not. Vehicle parts (8708) are used for vehicle operation or structure, while drawing tool parts are used for the drawing function and do not constitute essential vehicle components. Unless the part is also necessary for vehicle operation, but this situation is rare. How to check the tariff rate for 901790? Tariff rates change; it is recommended to check the latest rates through the General Administration of Customs website, China International Trade Single Window, or consult a customs broker. Note that different countries of origin may apply different rates. If the part is imported for assembly into vehicle-mounted drawing tools, does it affect classification? No effect. Classification depends on whether the part itself is dedicated to 9017, not on the use after import. As long as the part is dedicated to drawing tools, it is classified under 901790.