中心螺栓 meaning in English

center bolt
central bolt
centre bolt
heart bolt

Center bolts for laminated leaf springs
叠层簧中心螺栓
Leaf spring center bolt
钢板弹簧中心螺栓
Couplers , spigot pins and baseplates for use in falsework and scaffolds - part 1 : couplers for tubes - requirements and test procedures
脚手架和支承架用联结件中心螺栓和踏板.第1部分:钢管用联结件.要求和试验规程
Couplers , spigot pins and baseplates for use in falsework and scaffolds - part 1 : couplers for tubes - requirements and test procedures ; german version en 74 - 1 : 2005
脚手架和支承架用联结件中心螺栓和踏板.第1部分:钢