1 Size:DN8~150mm (1/4"~6"). 2 Standards: including BS EN/562:1997,DIN 2950/1629/2999, ANAI/ASME AT97-79/B 16-3-92/B/20 and so on. 3 Surface: galvanized or blank. 4 Packing: In container. 5 Usage: The pipefittings are used for the link of water, oil, air, gas and other pipelines