www.kumhotech.kr 1. 화공기내장품 2. 특수밸브 3. 배관기자재 ( Tower Internals, special valves, pipings, etc. )
Knife gate valve, on drilling, stainless steel...
http://blog.cyworld.com/kt2004
http://cyworld.com/jet2004
jet2004@empal.com
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