1. It is strictly prohibited to disassemble and disassemble the expansion flange at the pipeline construction site; It is strictly prohibited to stretch, press, shorten and expand at random. 2. The pipe at both ends of the telescopic valve shall be concentric, and the two flange surfaces of the p

How to distinguish between stainless steel flanges and forged flanges. Product pictures and technical parameters. Specific display TCS-A single-layer electronic platform scale: single-layer structure, integral panel; built-in junction box, beautiful and generous; U-shaped cold-formed steel group wel