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Why can not be promoted in manual or automatic?

Categories: FAQStars: 3Stars Visit: - Release time: 2015-08-14 14:49:00
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1.large solenoid directional valve does not change.

2.no solenoid directional valve.
3.hydraulic control check valve or valve plug valves.
4.lifting button or upper limit switch contact.
Keywords in the article: veneer press laminated press machine hot press