3months
1year
Pipeline Transport, Boiler Pipe, Hydraulic/Automobile Pipe, Oil/Gas Drilling, Machinery Industry, Chemical Industry, Mining, Construction & Decoration, Special Purpose, ASTM A53,A500,A252,A795,BS1387,GB/T3091,ISO R65,
Round
Varnish, Hot Dipped Galvanized,Pre Ga
a,B,Grade 250,Grade 350