?General safety requirements for heat treatment operation

Release date:2020-01-16 15:02:34

General safety requirements for heat treatment operation

Release date: July 31, 2014 reading times: 45

1Before operation, first of all, be familiar with the heat treatment process and the equipment to be used.

2During operation, necessary protective articles must be worn, such as work clothes, gloves, protective glasses, etc.

3) Between the heating equipment and the cooling equipment, there shall be no objects that hinder the operation.


国产高清不卡一区二区,免费在线看黄片av,免费视频观无码一区,国产片婬乱一级毛片影片