High casting Stainless Steel coupling with ss handle 1.Sizes:From 1/2" to 6" 2.Thread:BSP,NPT 3.Sandard:A-A ... good thermal processing, non-hardening heat treatment (non-magnetic, then with warm Chong -196 °C ~ 800 °C).Product Description Casting methodforged ... /BS/DIN/JISApplicationoil, mining, agriculture, food, chemistry, and fire protection industriesSize1/2’’ to 6’’TypeA, B, C, D, DC, DP, E, F ...