Material:Carbon Steel Technics:Forged Type:Nipple Connection:Female Shape:Equal Head Code:Round Surface:Hot Dipped Galv,Electric Galv,Black Threads:BSP BSPT NPT DIN-2999 Material:carbon steel 235 colour:Galvanized, black Application:Connect Pipes Standard:ASME B16.9 Size:1 2' ~ 6' Pressure:XXS) Certificate:SGS Packing:Carton Case