1. Product Information a). Technique: Forging b). Material: 40Mn2, 50Mn, ect. c). Warranty: One Year/2000 hours d). Accept OEM OR Drawing 2.Suitable Machinery BRAND MODEL HITACHI KH70, KH100, KH100-1,KH100D,KH125, KH125-2, KH125-3, KH150, KH150-2, KH150-3, KH180, KH180-2, KH180-3, KH230, KH230-3, KH250HD, KH300, KH300-2, KH300-3, KH500-2, KH500-3, KH700-2,KH850,KH1000,U106A,TH55, CX300, CX350, CX500, CX550, CX650, CX700, CX900,CX1000,CX1100,CX1800,CX2000,PD7, PD100, etc. http://www.craneundercarriage.com