... or special requirements from Customers.1) Chain wheel, gear wheel, sheave, idler wheel, platen, winding drum, helm seat etc ... block, module etc.(6) Fire grate car, carrier wheel, driving chain, chain wheel etc. for mine metallurgical engineering .(7) Support of ... ABS ISO9001-2008 quality system certification , having declared NK,DNV,BV,ABS,CCS,Germany classification society attestation. chain wheel