note! The cast steel part is need very good surface, so the fix of model is very important, but many factory pass this to speed up produce, we have the many people to check this, but slow down the produce!
the threaded and the after process, we do not use the thread tools to do it once, but the seperated it is to cnc machinese to smooth the thread surface and other connection! , make the quality perfect, not 99%, but the 100%! so we provide the steel parts to CHINA high-speed railway brake system for long time, no bad broken in the runing time!
In the sealed system and high clean enviroments, we can provide the good prodcurts, make it is 99.9999% level reliability!
everything make the our cost is higher than other manufactuers, so please know what you want and price!
the stainless steel is the Ni element is the key, we can promise this 8-10%, but other small element is still important to some industries, etc P .S. C.Si.Mn, if you very care these, must told me in the order! (most factory never check the raw materials when they melt to cast)
most 300 series Stainless steel is good at lower temerature work and high temperature than other metal, and cheap! but it is the gas and liquid, not the solid, the wate changed to ice, the volume is bigger, can damage manything of all system like in the winter! not other stainless steel type, etc 200 series and 400 series, like the glass, easy break , and copper can work in the lower temperature, but the ammonia have the active feature to the copper metal, not safe! also if the short time half a year or one year! that cost much for the change of pipes every year!
ASME B16.3,ASME B16.14,ASME B16.39,
BS EN 10242,BS143,BS1256
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