1. Do not contact with other metals, because stainless steel pipe fittings will be rusted by dissimilar metals, such as screws, etc. Although it is not serious at first, if you wipe it with a cloth and neutral detergent, you will see the rust.2. Another factor for the rust of stainless steel pipe fi

1. Optimization of sulfate zinc platingThe advantages of sulfate galvanizing are that the current efficiency is as high as 100% and the deposition rate is fast, which is unmatched by other galvanizing processes. Because the crystallization of the coating layer is not detailed enough, and the dispers

Straight seam steel pipe production temperature:In the process of producing straight seam steel pipes, it is necessary to strictly control the temperature, so as to ensure the reliability of welding. If the temperature is too low, the welding position may not reach the temperature required for weldi

Pretreatment of straight seam steel pipe:The non-destructive testing inside the weld is because the pipeline is an extra-large steel pipe in the water supply project, especially the steel pipe with a thickness of t=30mm is used as a pipe bridge. bending moment, so the requirements for welding are pa