拉伸器 meaning in English

stretcher
tensioner

Specializing in the production of jack , hydraulic wrench , hydraulic nuts , bolts hydraulic tensile , snorkel platform groove machine , demolition broken clamp , the manual hydraulic pump , electric and pneumatic hydraulic pumps and other hydraulic pump
专业生产千斤顶、液压扳手、液压螺母、螺栓拉伸器、液压升降平台、坡口机、拆破钳、手动液压泵、电动液压泵和气动液压泵等。