Expansion Joint used for the irion and steel project expansion joint: 1. ... Special Equipment (pressure piping component) Manufacturing Permit and passed the ISO9001 quality control system authentication. 3 ... by hydraulic press of 12 000T, 2 400T, 2 000T, 1 200T, 350T, and roll forming ... metallurgy, aviation, astronautics, ship, nuclear industry and pressure vessel and so on, 7. Our products has been ...