1

Invention of a combined valve cover forging die for rapid mold release

2

Invention of a replaceable rear cylinder punch structure for valve body forging

3

Invention of a mold for multi-directional die forging of valve covers and its insert quick-change structure

4

Invention of a closed multi-directional forging die for T-shaped copper bars

5

45001 Occupational Health and Safety Management - Chinese

6

45001 Occupational Health and Safety Management - English

7

14001 Environmental Management - Chinese

8

14001 Environmental Management - English

9

9001 - Quality Management System - English

10

9001 Quality Management System - Chinese

11

API-20C