span-guy derrick 千斤

guy span 吊长件货物索具

guy span wall 舷樯

guy span wire 拉线

guy span stake 索系桩

guy span thimble 牵索套管

guy span tightener 紧索轮

guy span strand rope 镀锌钢丝绳

guy span strain insulator 拉线耐拉绝缘子