GB/T 3293-2017 in English

《GB/T 3293-2017中国鞋楦系列》由TC305（全国制鞋标准化技术委员会）归口，主管部门为中国轻工业联合会。

1 Scope

This standard specifies the sizes of lasts for men's, women's, children's, professional athletic and rain footwear.

This standard is applicable to lasts of the above footwear for the Chinese people (adults and children).

2 Normative References

The following documents are indispensable for the application of this standard. For dated references, only the edition cited applies. For undated reference, the latest edition (including all the amendments) applies.

GB/T 2703 Footwear - Vocabulary
GB/T 3294 Method of Inspection for Last Sizes

3 Terms and Definitions

For the purposes of this document, the terms and definitions given in GB/T 2703 and the following apply.

3.1
master model last of sample size
last of representative size among various levels of shoe sizes

Note: refer to 4.1 for various representative sizes of each level.

3.2
range of lasts
complete set of last sizes increased or reduced by the specified equal interval of sizes with the master model last of sample size as center

Note: see Chapter 6 various last types.

Foreword i
1 Scope
2 Normative References
3 Terms and Definitions
4 Requirements
4.1 Shoe Size Classification
4.2 Equal Difference in Last Size
4.3 Requirements for Uniform Positions on the Back
4.4 Relevant Requirements for Heel Elevation
4.5 Requirements for Normal Size and Reference Size
4.6 Requirements for the Extended Length of Last
4.7 Requirements for Processing Deviation of Last
5 Inspection for Last Sizes
6 Lasts and Systems
6.1 Lasts and systems of men’s footwear
6.2 Lasts and Systems of Women’s Footwear
6.3 Lasts and Systems of Children's Footwear
6.4 Lasts and Systems of Professional Athletic Shoes
6.5 Lasts and Systems of Rain Footwear
7 Last Name
7.1 Name Composition
7.2 Name Example