... ,JIS,ASTM,SAE,DIN or special requirements from Customers.1) Chain wheel, gear wheel, sheave, idler wheel, platen, winding drum, helm ... .(6) Fire grate car, carrier wheel, driving chain, chain wheel etc. for mine metallurgical engineering .(7) Support of bridge applies to bridgework .The ... declared NK,DNV,BV,ABS,CCS,Germany classification society attestation. chain wheel