(ZXL1200-2.5-4*3*1(00Cr17Ni14Mo2 1. A large-scale factory which is specialized in expansion joint ... are formed by hydraulic press of 22000T,12 000T, 2 400T, 2 000T, 1 200T, 350T, and roll forming method also can be ... scopes such as the petroleum, petro-chemistry, chemical, industry, electric power, thermal energy, water conservation, metallurgy, aviation, astronautics, ship, nuclear industry ...