When size cracks, raokwang, enough to keep the liquid into the blockage between the niches suitable to use material for gate one of the trout. In General, the repair material is cement based one of the trout, but the gate to the property to a higher capacity and reduce shrinkage. Additives must be added such as blending metal powder. Asbestos fiber cement sand powder or expansion. Ingredients to enhance adhesion between particles, higher. To contribute to increase automatically. By reducing the amount of water in the mixture will reduce the shrinkage of the material down. Also, if required, to increase the flow in the gate one of the trout might be using chemical additives help reduce substance such as one way of reducing substances and special water or water, etc.
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