非螺纹密封连接管螺纹.第2部分:极限量规检定, 您可以免费下载预览页
trapezoidal screw threads79.普通螺纹量规型式与尺寸Types and dimensions of gauges purpose screw threads80.非螺纹密封的管螺纹量规Gauges for pipe threads prcessure-tight joints are not made on the threads81.螺纹千分尺Screw thread micrometer82...
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