door bolt
吊门螺栓垫块 hanging door screw washer
部门螺栓图形中间线 partial bolt circle
门厅用配套螺栓 packed landing bolt
门底脚螺栓 [木] foot bolt
气门盖螺栓 valve cover stud ; valve cover bolt
现有气门盖螺栓 existing valve cover bolt
阀门盖螺栓连接 BB
气门摇杆锁紧螺栓 valve rocker lever locking bolt
汽门间隙调整螺栓螺帽 valve adjusting screw and nut
铰链应该采用不锈钢，并配置防干扰不锈钢螺栓和螺母，在检修门现场浇铸时能够在维修时进行拆卸。
Hinges shall be stainless steel with tamper proof stainless steel bolts and nuts, and shall be removable for maintenance after the access door is cast in place.
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