A portable corrosion rate meter was used to comparatively measure the annual corrosion rates of 20 steel tube and its integral hot-dip aluminizing coating in acidic and alkali corrosive mediums.
采用便携式瞬时腐蚀速度测量仪，对20钢及其热浸镀铝件分别在酸性和碱性介质中测定年腐蚀速率并进行比较。
We mainly produce cylinder, cold drawn tubes, honing tube, piston rod, and machinery manufacturing, the annual output reaches over 20,000 tons.
现主要生产油缸（ 油缸管）、 冷拔管、珩磨管、活塞杆以及机械加工制造等，年产量达20000余吨。
The company has international advanced level of imports of processing equipment, testing equipment and annual output of 10,000,000 pieces of the productive capacity of the hydraulic tube.
公司拥有国际先进水平的进口加工设备、试验设备和年产量1000万件液压管件的生产能力。
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