reciprocating vacuum pump equipment and environmental requirements-电子pg麻将胡了

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(1) the pump body is clean and there is no dust and oil on the outside.

(2) there is no water, waste liquid or other debris on the surface and surrounding of the base.

(3) there must be no leakage at the valve and fittings.

(4) the leakage of the packing seal does not exceed the regulations.

2019/09/04 10:29:23 476 click

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