1/8寸英制螺纹减速机压缩机油位观察孔视镜油窗油位计
NPT1/2寸黄铜液油观察镜油窗减速机油位器油镜堵头
NPT 1寸2寸美制螺纹减速机压缩机油位观察孔视镜油窗油位计
NPT 1寸1/2寸美制螺纹减速机压缩机油位观察孔视镜油窗油位计
G3/4寸液态水流指示器
NPT 2寸美制螺纹减速机压缩机油位观察孔视镜油窗油位计
NPT 1寸美制螺纹减速机压缩机油位观察孔视镜油窗油位计
NPT3/4寸黄铜液油观察镜油窗减速机油位器油镜堵头M22X1.5
NPT1/2寸黄铜液油观察镜油窗减速机油位器油镜堵头M22X1.5
NPT1-1/2寸黄铜液油观察镜油窗压缩机油位器油镜堵头
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