Man, can you send me some national standards? Mainly for hydraulic use
Here you are, some European companies, but you need to download them on the Baidu Library
Domestic standards, I do not have any standards, the domestic standards of learning German, learn from other countries standards, do very badly.SN standard pipe taper angle of 24 degrees and 30 degrees in China, can not mix.
SN751877752732807887883882884832789865455591The joint SN807 head can be placed behind the standard, behind pick up my personal often replaced welding; because the domestic expansion connecting pipe, surface finish is not enough, easy to pick up leakage; and in the process of construction workers often pick up badly, also easy to leak.
