... heavy truck like Howo, Benz, Volvo, Golden Dragon Item No: 1250 304 351 Sliding sleeveA: Features1) Material: Steel(20CrMo, 20CrMoTi, 42 ... relationship should be built between us.Mobile:+86-13657687302Trademanager:cqyongyue 1250 304 351 Sliding sleeve