The factory was founded in 1987.Through the development of 20 years,Our factory had been becoming one of the leading manufacturers and exporters on malleable iron pipe fittings and castings in China. The following is the standards our product can meet: BS Standard:ISO5922,ISO49,ISO7/1 NPT Standard:ANSI/ASME A197-79/B16.3-85/B1.20.1 DIN Standard:DIN692/2950/2999 Regarding this product,we can manufacture Banded,Beaded and Plain;with Rib and without Rib;Heavy and Light. We have a ISO9001:2000 certificate. SIZE:1/4"-6"