... /8"-14" THK: From SCH10s-SCH160s. GUOBANG STEEL have Pipe and Pipe Fittings process workshop,ISO9001:2008,PED97/23/EC,and AD2000 ... ,GOST and RTN certfied, month output:550metric ton for pipe, 300metric ton for pipe fittings.Order info: Product name, Standard, Grade,Size ... Stainless Steel and Nickel Copper Elbows (So it will not reduce the wall thicknes)Size:Seamless Fittings 1/2”-20” (DN15 ...