1.Name:Long Handle Sleeve 2.Certificated:ISO9001:2000 3.Material:Cast Iron,Plastic, ... Product Name:Long handle Sleeve(1)Material: Cast Iron,Plastic,Bakelite(2) Type: Bakelite Handwheel,Double Spoked Handwheel,Inner Corrugation Handwheel,Back ... , threading, grinding machinesGB/4141.14-84(JB1342-73) dLM532M636M840M1050M1260M1670M2080 Long handle Sleeve