樓面蓋板型變形縫（DMD-QGJ型）
——樓面蓋板型變形縫裝置采用滑桿確保變形縫裝置變位時仍能保持中心及原有位置。
產品特性：
1，50%的位移量
2，蓋板自定中心，接合平整
3，面板可選用鋁合金、不銹鋼、黃銅等
metal plate type floor distortion seam (expansion joints) devices
—metal plate type distortion seam device adopts slider bar ensure distortion seam device when deflection can still keep center and the original position .
Product features :
1 , 50% the displacement
2 , Cover home-grown center , jointing smooth
3 , The panel can choose aluminum alloy , stainless steel plate or brass
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