tygon vacuum tubing
... 橡胶管rubber tubing 真空泵管tygon vacuum tubing 透明pvc管clear pvc tubing ...
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真空泵管道 vacuum-pump line
泵油真空管 pump oil vacumm
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必须建立真空泵管理标准和条件必须定期管理设备状态。
Vacuum pump management standard must be established and the equipment condition must be managed periodically according to the criteria.
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