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1. You must hold a valid certificate to take up your post. Familiar with the structure, performance and...

ZONGDA Underground Mining Ventilation Fans delivered to the Philippines!

Load haul dump machine is designed for 3.8 x 3.8 m mine tunnels. Compared with the original underground...

Qingdao ZONGDA Machinery Co., LTD. Ventilation Fan Production factory，It mainly produces mine fans, mining...

It has the advantages of small inertia, fast action, good adjustable performance, high reliability, high...

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