Custom AISI4130 /4135 4140 High Precision Cold
AISI4130 /4135 4140 High Precision Cold Rolled Seamless Steel Pipe Cylinder tube is a kind of high precision steel pipe material which is processed by cold drawing or hot rolling. Because of the internal and external walls of precision steel tube without oxidation layer under high pressure, no leakage, high precision, high smoothness, cold ...
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