I would like to introduce our company as a manufacturer for the supply of various Precision Seamless Steel Tube for Hard -drawn and all kinds of profiled bar. Some of our customers purchased our tube and used for Hydraulic Cylinder directly without honed,as the roughness of inside is between 0.8-1.2um.

The perform to standard : ASTM A53, ASTM A106, ASTM A179,ASTM A192, ASTM A513,ASTM A519, DIN 2391(EN10305-1), DIN 2393(EN10305-2), DIN1629, DIN17175 EN10210.etc.

Steel grade : ST35, ST35.8, ST37, ST37-2, ST44, ST44-2, ST45, ST45.8, ST52, ST52-3. S355J2H.etc.

The specification range : OD12mm-OD160mm and WT1.0mm-WT16mm.

Product condition: BK, BKS, BKW.