GREEN machine schedule: Daily, computerized schedule of tubing stock organized by outer diameter size, to be run on the screw machines per customer requirements.
毛坯件机加工计划：对按照外径分类好，按客户需求在车床上加工的管材的日常计算机管理计划。
The outer-body diameter of the plunger is cut just under production tubing drift to provide the maximum seal while the plunger moves fr eely.
当柱塞自由移动时，柱塞的外体直径刚好能够满足生产油管内径密封需求，提供最大的密封保障。
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