... Weifang Lingwei Machinery Co.,LtdLW-WD series gold panning ship has advanced technology, reasonable structure, reliable operation ... First, structural principle(Weifang Lingwei Machinery Co.,Ltd):LWWD-type gold panning ship is the bucket gold panning ship, the equipment of the ship ... it is used for operating of the entering ship, changing ship, mooring ship and submarine sliding and lifting arm upgrade( ...