stainless steel reducing union tee 1)standards:GB/T12459,GB/T13401,SH3408 2)forming type:cold forming stainless steel reducing union teeFeatures:1):Material:stainless steel2):Size:seamless fitting1 ... ):Wall thickness:SCH5S-SCH160For use in the petroleum ,power,natural gas,smelting,papermaking,ship building,boiler heart exchagnger,construction industry etc ...