... 方钻杆补心海拔高度 ekb 方钻杆 grief joint; grief kelly; grief stem; keklly vara cuadrante; kelly bar; kelly joint; kelly rod; kelly stem; kelly vara cuadrante de perforacion; square drill rod; square kelly; square shaft 带槽方钻杆 fluted grief stem ...
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brush square shaft 刷架方轴
Rotation speed of square shaft 方轴转速
shaft and industry square pillar 井筒与工业广场煤柱
Kwan Kee JFZ series square shaft handle high quality standards of raw materials, and application of high-tech precision manufacturing technology to ensure product quality.
钧记JF Z系列方轴执手采用高品质标准原材料，同时应用高新精密制造工艺技术，确保产品的高质量。
The shaft shall be hexagonal or square to ensure positive rotation of the disc and be totally sealed from exposure to the process liquid.
阀杆应该是六角形或方形，以确保阀瓣能够灵活旋转，并且完全密封，不会暴露在处理的液体里。
It is the middle of a slender wooden shaft with a hollow circle at both ends of each round, round a few weeks to open mouth square posts.
它中间有一细腰木轴，两端各连一空心圆轮，轮周开几个方形哨口。
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