Quenching crack of erw casingQuenching cracks are often produced shortly after the martensitic transformation begins, and the distribution of cracks is not necessarily regular, but it is generally easy to form at the sharp corners of the wo...英国华人论坛
The report on the Vertical Quenching Machine market analyzes and estimates data regarding the business sector for Vertical Quenching Machine in the globally. The business has been gauged in terms of volume (kilo tons) and revenue (US$ millio...英国华人论坛
Currently more than water as the heat-treated steel hardening agent, this is because the quenching medium, water is most economic, security, environmental pollution. However, rapid cooling of the water. When hardened steel prone to distortio...英国华人论坛