1. Product Information a). Technique: Casting b). Material: 35SiMn,Website:http://www.craneundercarriage.com, 28CrMnMo, ect. c). Warranty: One Year/2000 hours d). Accept OEM OR Drawing2.Suitable Machinery BRANDMODEL ZOOMLIONQUY50, QUY70, QUY80, QUY100, QUY130, QUY180, QUY260, QUY320, QUY350, QUY400, QUY450, QUY500, QUY500W, QUY550, QUY600, QUY650, QUY800, QUY1000, ZTM300, ZTM500, ZCC750, ZCC800H, ...