... ODM are Available4,Material:malleable cast iron5, Size:rang from 1/2" to 6"6, Surface finish:hot dipped ... ,British standard, DIN standard8, Type:galvanized cast iron pipe fitting elbow9,Certificate: ISO900110,Edge : beaded,banded,plain11 ... reducing two kinds with or without rib12,Every pipe fitting we send you under strict quality control13, ... series:heavy,light,middle Hot dipped GI pipe fittings socket