1. Standard: IFI, DIN, ISO, BS, AS and JIS.
2. Mechanical property: GR1, GR2, GR5, GR5.1, GR5.2, GR8, GR8.1, GR8.2,CL4.6, CL4.8, CL5.8, CL6.8, CL8.8, CL9.8, CL10.9, CL12.9.
3. Surface treatment: surface treatment、black oxide、black zinc plated、copper plated、dacromat plated、hot dipped galvanized、mechanical galvanized、nickel plated、oil quenched with black finished、phosphate & oil、ruspert colorful plated、waxed、zinc plated.
The customer wants the 2 pcs and they want it to be produce as a once pcs part. not 2 pcs put together but actually one solid pc.