140mm round cake concrete cushion block steel reinforcement protective layer construction materials for building facilities

Solid grout stopper rod, corrosion-resistant, non deformable, elastic, strong density, large square, circular, optional

Plastic cushion blocks are essential for the construction of special beams, columns, and floor slabs for building steel reinforcement protection layers

Z35 brand reinforced concrete cushion block floor slab support durability enhancement practical model

Plum shaped cushion block 75-100, construction materials for building facilities, beams, columns, and floors, specialized for beams, columns, and floors

Zhishu brand plum blossom shaped cushion block concrete reinforcement protective layer cushion block with various thicknesses

Hot melt gasket tunnel waterproof board fixed with special polyethylene material for compression and bending resistance

Round cake 80mm concrete cushion block, steel reinforcement protective layer cushion block, construction materials for building facilities