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| - Patent of Remote control open & shut system for water-gate(0189321) - Patent of open & shut equipment for water-gate(179347) - Patent of slide type Automatic trash rake & screen system(137502) - Patent of water-gate control equipment for water-channel(123921) - Patent of auto scum remover for water supply(173107) - Patent of open & shut equipment for water-gate(179347) - Registration a utility model of reduce equipment for water-gate(0142613) - Registration a utility model of brake equipment for water-gate open & shut(0142614) - Registration a utility model of trash remover system to X-bar slide type(0144014) - Registration design of water-gate control regulator for water-channel(140727) - Be certified KS A, ISO 9001, 14001 |
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