... :ISO7/1, DIN2999, NPT shanxigoodwill g.i. pipe fitting g.i. pipe fitting 1.Welcome to SHANXI GOODWILL ... Steel Pipe Fitting Dimensions 3.Products Information g.i. pipe fitting MaterialMalleable casting iron StandardBS(EN10242) ... , Union, BushingSurfaceHot-dipped galvanized, Normal black, Shining blackGradesHeavy series, Standard series, Medium series, Light seriesSize3/8", 1/2" --- 6"ConnectionMale, ...