For Steel products: (1.) Seamless Steel Honed Tubes/ Internal Honed with External Hard Chromium Plate Tube/Internal Honed & Hard Chromium Plate Tube JIS STKM 13C/DIN 2391 ST52.3 BK+S, any others Carbon Steel products are available too. (2.) High-Carbon Anti-Friction Bearing Steel Bar/ Hollow Bar SUJ-2 /DIN 100 Cr6/ SAE 52100 (3.) Induction Hardening Chromium Plate Bar SAE 1045/JIS S45C/DIN CK45/DIN CF53, any others Carbon Steel products are available too. (4.) High Cr-mo Alloy and Chrome Plate Steel Bars SCM 440/ DIN 42 CrM04 (5.) Seamless Carbon Steel Pipe for Oil pressure service ST 37.4 (6.) Spare Parts for Liner Bearing Steel-Bar (7.) Hard Chrome Plate Rods/Grind Rods SAE 1045/JIS S45C/DIN CK45/DIN CF53, any others Carbon Steel products are available too. (8.) Various kinds of precision machine shaft Thanks & Best Regards; Peter Hong / Foreign Dep. For Honest Prosper Industrial Co., Ltd. Tel: 886-4-7983078 Fax: 886-4-7995061 Skype:Honest Prosper