galvanized steel tube flang Size: from 1/2 to 200 ... JIS, EN, JB, GB, HG, UNI, API galvanized steel tube flang Technics: Forged Size: from 1/2 to 200 inch ... , Wnrf, Sorf, Blrf, Thrf, Swrf, Ljrf Carbon Steel FlangeDin2573 Pn6 Slip-On, Din2576 Pn10 Slip-On, Din2543 Pn16 ... pipe line, such as oil, petroleum, gas, chemical industry, nuclear power station, water and nuclear power construction, shipbuilding ...