... is dicided into 4 types,namely:the open type,the close type,the heat insulation type and the air condition typ Ordering information:1 ... position:side,end and top ones.3,The hook for main hoisting is 2 kinds of specifications:single and double hooks.4 ... in plateau area,severly cold area,humid-warm area.The Technical Specification of the 250/50t E.O.T.CraneCapT250/50Span(Lk)m13161922252831Duty ...