... : 0.5-106mm Product nameA312 TP321 Stainless Steel Pipes for Heat Exchanger Standard ASTM GB JIS DIN ectMaterialST52, ST38.5, A106 ... .8m 6m 12m or as customer demandUsed areaPetroleum,chemical,power, gas, water, metallurgy, shipbuilding, construction, etc Or as customer ... ,SGS, or as customer demandRemarkWe can customer made for special requirement A312 TP321 Stainless Steel Pipes for Heat Exchanger