BS thread galvanized malleable iron pipe fittings ISO9001:2008 output 20,000tons we are a proffsional manufacturer of galvanized and black malleable iron pipe fittings, especially in class 150:1. Items: tee, elbow, socket, nipple, bushing, bend, cap, plug, locknut, cross, cross over, coupling, union, flange, and so on2. Thread Standard: BS, NPT,DIN3. Edge: banded, beaded, plain4. Surface: ...