Copper pipe coupling 1)abundant experience in casting production 2)high-standard technician ... ,melleable iron,aluminum,grey iron,bronze etc.2.Standard: DIN, ASTM,BS, JIS etc.3.Weight range : 0.05 - 5000kg.4 ... ,malleable iron,stainless steel, carbon steel,aluminium,brass etc.standardDIN, ASTM, BS, JIS etc.processsand casting,resin bonded casting, investment casting ...