... OEM sevice Brief Description of Znic Coated Sprocketznic coated sprocket for motorcycle;znic coated gear for motorcycleChain415,415H,420,428 ... hardened by meshbeltfurnace2) Surfaced Treatment: Sand blasting, znic coated or chrome plated, dull polish or as clients' requirement3 ... steel, 1023 steel and heat treatment technics, ensuring strong antifraying capacity.3) All the production process is made ...