1.Name:Back Corrugated Handwheel 2.Certificated:ISO9001:2000 3.Material:Cast Iron,Plastic, ... Bakelite 4.Weight:0.1g-6kg Product Name:Back Corrugated Handwheel(1)Material: Cast Iron,Plastic,Bakelite(2) Type: Bakelite ... , drilling, boring, threading, grinding machinesJB/T7273.8-94 dDhBHL108016122250121001814286312125181632161602018038801820025204422250282552100 Back Corrugated Handwheel