High Carbon Steel

CL' symbol Standard Steel Grade Application W1001 JIS G3521-SWA JIS G 3506 SWRH Umbrella Rib。 JIS G3521-SWB Umbrella Rib。 W1002 JIS G3521-SWA Spoke for Bicycle、Motorcycle、Wheelchair。 JIS G3521-SWB Spoke for Motorcycle。 W1003 JIS G3521-SWB Spring for Sports Appliance、Sofa、Mattress 、General Usage。 W1004 JIS G3521-SWC Spring for Mechanical Usage、Furniture、Automobile、Cycle、Door Shutter、Border Wire。 W1005 JIS G3521-SWA Washer, Outer Casing。 JIS G3521-SWB W1006 JIS G3521-SWA Steel Strand、Rope。 JIS G3521-SWB JIS G3521-SWC W1007 JIS G3521-SWA Nail、Platoon Nail。 W1010 JIS G3521-SWC & UP JIS G3522-SWPA High T/S Spring for Machinery、Shock Absorber。

Free Cutting Steel

CL' symbol Standard Steel Grade Application W2024L AISI 12L14 Nipple。

Low Carbon Steel

CL' symbol Standard Steel Grade Application W5006-22 (K) AISI 1006 - 22 (K) Net、Mesh。

Steel for Cold Heading

CL' symbol Standard Steel Grade Application W6006-22A JIS G 3507 SWRCH 6A - 22A Screw、Bolt、Nut、Rivet。 W6A35C CSC C-CH35ACR W6A40C CSC C-CH40ACR W6B21 CSC 10B21 W6CCH1 CSC C-CH1 W6CCHT CSC C-CH1T

Alloy Steel

CL' symbol Standard Steel Grade Application W7415-420 JIS G 4105 SCM415、SCM420　 Shaft、Pin。 W7435-440 JIS G 4105 SCM435、SCM440 Shaft、Pin、Screw、Nut。 W7N439-447 JIS G 4103 SNCM439、SNCM447 Air Tool Drill、Chisel、Impact Socket。 W76150 AISI 6150 Screwdriver、Air Tool。 W76155 CSC 55CRV W78660 AISI 8660