... :NPT threads 5.Standard,Heavy series Elbow 90 degree 3/
8 inch, NPT, Galvanized Malleable Iron Shijiazhuang Jizhong Malleable iron Co., ... into elbow, tee, nipple, socket, union, cross over, flange,
round cap and so on, in which the thread are of ... /ASME B1.20.1Mechanical properties:Tensile Strength≥33kg/mm2Elongatin≥
8%Hardness