Plastic Bottle Blowing Molds

Plastic Bottle Blowing Molds

Plastic Bottle Blowing Molds

2020年
平成32年
06月

High-frequency quenching of the bevel gear teeth is carried out

(2020年06月08日)

The heat treatment process is (820±10) t:, heat preservation is lOmin, and then quenched in 10NaCl …