... :ISO9001:2000 3.Material:Cast Iron,Plastic,Bakelite 4.Weight:0.1g-6kg Product Name:Plastic Rim Handwheel (1)Material: Cast Iron ... ,Plastic,Bakelite(2) Type: Bakelite Handwheel,Double Spoked ... , boring, threading, grinding machinesGB4141.24-84 dDH1251236160164020018 204525022 255032025 2856 Plastic Rim Handwheel