... carbon/stainless/alloy steel reducer,concentric/eccentric reducerSizenormal specification and as per the customer requirementMaterialcarbon steel,stainless steel,alloy steel,cast ... GB/TCertificateCE,ISOSurfacerust-proof oil,black painted,vanish,galvnanizing and as per customer requirementApplicationtransportation,lining,petroleum,chemical,power,metallurgy,construction,water ...