... , pipe clampsMaterial StandardMalleable iron, meet standard ASTM A197DimensionsOD SIZE, factory designGalv StandardASTM A153SizeA to E (OD size 27-60 MM)CertificateISO9001,ISO14001Working temperature-20 to ... , ISO 14001Product list1Malleable Cast Iron Pipe FittingsAnnual Output: 100,000 tons2Steel Pipe Nipples & Merchant CouplingsAnnual Output: 20,000 tons3Screwed Ductile Iron and Cast ...