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Because stainless steel flange at high temperature, can form a firm adsorption film, lubrication and cooling is very good, so it is widely used in production. Vulcanized oil is prepared by adding animal and vegetable oil and vulcanized whale oil or vulcanized cottonseed oil in mineral oil. Its sulf
The butt-welded flange is that the pipe diameter and wall thickness of the interface end are the same as the pipe to be welded, and it is welded just like two pipes.The flat welding flange is a concave platform that is slightly larger than the outer diameter of the pipe at the interface, and the pip