Preservation of the market: the contractor must proceed with preservation of cut blocks are and after construction at the request of the owner until completion and the workThe hygiene market: in the process of pouring the material. The contractor must always keep the surface of the roof replacement, not for piling waste material. When completed the work bidders must remove the entire construction equipment, surplus materials, scrap out of range block up, make sure the block up clean neat and satisfying the requirements of the investor.In the case of intermittent around structures, pipes and other equipment, the owner can specify the use of special equipment and methods
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