The surface of the marble is clean, with clear patterns, bright, smooth, divergent colors, uniform seams, straight edges, and no cracks, corners, and lack of slabs.

Marble quality specification:

(1). Guarantee items: the variety, specification and quality of marble meet the design requirements, and the connection between the surface layer and the bottom layer must be firm and free of hollow drums;

(2). The marble surface is clean, with clear patterns, bright, smooth, divergent colors, even seams, straight edges, and no cracks, corners, and lack of corrugations in the plates;

(3). The slope of the floor drain meets the design requirements, no flooding, no accumulation of water, and the connection with the floor drain is tight and firm, and there is no leakage;

(4). Allowable deviation: surface flatness ≤ 1mm, seam flatness ≤ 2mm, seam height ≤ 0.5mm, and gap width not greater than 1mm.

Marble waste maintenance:

(1). Store the marble without rain, blisters, or long-term sunlight. It should be placed in a vertical position, with the smooth surface facing each other. The back of the plate should be supported with wooden strips, and the bottom should be cushioned with wood;

(2) When transporting cement mortar, measures should be taken to prevent bumps, and to prevent soaking when using water;

(3). During the construction process, it should be cleaned with the shop, and the clean cloth should be soft cloth and dry cloth;

(4). The paved room should be temporarily closed for 24 hours, and no one is allowed;

(5), the paved room should be maintained in the air when other operations are stopped.