Plastic mould steel P20/ DIN 1.2311/ 3Cr2Mo .... Si 0.4 2.0 1.5 0.2 0.3 4.Characteristic application: Because of their high hardness when they were finished, their polishing, wear....
Xiangtan Argent Swallow Chemicals Co., Ltd is a .... As a result, the demand of our goods exceeds the supply.....