... steel,alloy steel,stainless steel 1. Commodity: seamless steel tube for condenser.2. Standard&material: ASTM A179,ASTM A192,ASTM A209 T1 ... ,T22,T23,T91,T92, TP304(L),316(L),321,etc and other equivalent standard&steel grades.3. Size range: For carbon ... seamless steel tubes are specially used for condensers. seamless steel tube for condenser