Harsh Steel Stocks, Manufacturers and Exports Copper nickel 70-30 , Copper nickel 90-10, Beryllium copper, Ofhc copper capillary pipes and tubes along with Copper nickel 70-30 , Copper nickel 90-10, Beryllium copper, Ofhc copper seamless and welded pipes, Copper nickel 70-30 , Copper nickel 90-10, Beryllium copper, Ofhc copper heat exchanger tubes, Copper nickel 70-30 , Copper nickel 90-10, Beryllium copper, Ofhc copper finned pipes and tubes, Copper nickel 70-30 , Copper nickel 90-10, Beryllium copper, Ofhc copper U tubes in standards of ASTM B151, MIL C15726F, ASTM B153 ,ASTM B154 ,ASTM B170, ASTM B224 , ASTM B846, ASTM B858, ASTM E8, ASTM E8M, ASTM E29, ASTM E53, ASTM E54, ASTM E62, ASTM E75 ASTM E76 ASTM E112, ASTM E243 , ASTM E255, ASTM E478 ,ASTM E527.