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平面外墻金屬蓋板型ZKWQ-GB-P

轉(zhuǎn)角外墻金屬蓋板型ZKWQ-GB-L
 

Advantages:
 1.simple structure, low cost

 2. simple installation 

Disadvantages: only applicable to whose gap width  is under 70mm, not recommendable to those over 90mm