抗震型地坪变形缝装置
Seismic type distortion seam device
增加盖板厚度，提高承载能力
盖板自定中心，接合平整
铝合金基座（阳极氧化），面板可选用大理石
Increase cover thickness , improve the bearing capacity
Cover home-grown center , jointing smooth
base alloy ( anodic oxidation ) , panel can choose marble
