China high quality Stainless Steel Sprocket Gears

Product Description Product Description Product Discription: 1. DIN8187 ISO/R 606 and DIN8188 ISO/R606-ANSI B29.1. 2. Simplex / Duplex / Triplex / Multiple. 3.45C steel, Tooth Hardness. 5. Surface: Shot Blasting Natural/Black/Blue/ Nickel plate/ Zinc plate. Product...