楼面盖板型变形缝（DMD-QGJ型）
——楼面盖板型变形缝装置采用滑杆确保变形缝装置变位时仍能保持中心及原有位置。
产品特性：
1，50%的位移量
2，盖板自定中心，接合平整
3，面板可选用铝合金、不锈钢、黄铜等
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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