... "-6"Thread StandardBS ANSI & DINFinishBlack, Eclectic Galvanized, Hot Dipped Galvanized, all be antirust treatmentPackingCartons, woven bags, wooden boxesQuality Control Excellent material, precise angles, good antirust ... propertyProduct UsageSuitable for joining pipe lines of team, gas, oil, air Hot Dipped Galvanized Malleable ...