Purchase Qty. Reference FOB Price
500-999 Pieces US$4.44
1,000+ Pieces US$3.85
Product Description
Product Description The large sprocket is made of high-quality 45# steel from the original factory, and the small sprocket is made of 20CrMnTi, all of which are forged and heat-treated in a mesh belt furnace. The hardness is more uniform and stable. After pickling and shot blasting treatment, it ...