1. ISO9001:2008 & BV
2. Material: iron 3. Used in coal gasect and nautral air ... Qaulity certifcate: ISO9001:2008 & BV Brand: QIAO,QXM About Products:
2) Items: tees, elbow, sockets, nipples, unions, plug, bends, caps, bushing ... ''-6'' Surface: galvanized, blackPressure test :Working Pressure : 1.6MpaTest Pressure :
2.4 MpaTensile strength HB180>330N/mmElongation > 8%Hardness