Pass 2 days after the left and right sides is dry, use thicker diamond aspersion kibble first, grind appear equably entirely to cobble, rinse grout clean again.

• 过2天左右干燥后，先用较粗的金刚石洒水粗磨，磨至石子全部均匀外露，再将水泥浆冲洗干净。