可升降的，适用于平板式拖挂车，不载货时，锁头落下，与平板平齐。锁轴采用精锻工艺，表面光滑齐整，抗拉力强；锁壳为铸钢精密铸造，适于焊接，尺寸精度和表面光洁度比较高；表面可焊接底漆处理，附着力强、坚韧耐久且环保；转锁附件强度高，质量好，性能可靠。 是一款非常经济的装置，操作简便。

Product Description

·Retractable
         ·90°handle rotation.
         ·Distinct indexing of locked and unlocked positions.
         ·Simply fitted to vehicle/chassis, usually by welding.
         ·Weldable cast steel body and forged steel stem to ensure rugged strength and durability.
         ·Securing head retracts below deck level.
         ·Finish: Weldable Primer