Capacitor shell adopts the high quality cold-rolled steel sheet or stainless steel sheet, and with mounting bracket for lifting on both sides which equipped with special grounding screw.

电容器外壳的材质采用优质冷轧钢板或不锈钢板，两侧装有供吊运安装支架，并装有专用的接地螺丝。

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Especially for long screws, Ohm screw, rolling ball screw made, and machinery, hardware tools, vehicle parts, thread rolled processing.

适用欧姆螺杆、滚造级滚珠螺杆，及机械、五金工具、汽机车零件的螺纹转造加工。

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The characteristics of straight screw sleeve connection technique of rolled reinforcement are introduced as well as technological principle, process and application scope.

介绍了剥肋滚轧直螺纹钢筋机械连接的工作原理，阐述了接头的特点、应用以及现场检验与验收工作。

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