This standard specifies drum shearer (hereinafter referred to as shearer)-composition and arrangement of product types, description of composition code number of each product type and symbolization example of product types.
This standard is applicable to shearer-type symbolization.
2 Composition and Arrangement of Product Types
Product types of the shearer are composed of product series code and derived type code. The type code is mixed compiled with Arabic number and Chinese phonetic alphabet and the arrangement method is shown as follows:
