所有的施工材料必须预先检验测试，合格后才和供应商签字供应协议，计划组织

All construction materials must be inspected and tested in advance, and only after they are qualified, they will sign a supply agreement with the supplier, plan to organize production additions, and ensure that the project progress will not be delayed due to material and material problems. <br>Main material supply conditions: <br>1. Geotechnical materials such as pipes, geotextiles, and plastic drainage plates: The project has convenient land transportation, and geotextiles and plastic drainage plates are purchased by professional manufacturers; <br>2. Clay cofferdam: local materials; <br>3. Empty Membrane: factory prefabricated, laid on site; <br>4. Earthwork: purchased nearby.

All construction materials must be pre-tested, qualified and the supplier signed a supply agreement, the plan to organize production plus, to ensure that the material and material problems do not delay the progress of the project.<br>Key materials supply conditions:<br>1, pipe, geotechnical cloth, plastic drainage board and other geotechnical materials: the project on-shore transportation facilities, geotechnical cloth, plastic drainage board in professional manufacturers to buy;<br>2, clay fence: in-place material;<br>3, empty film: factory prefabrication, on-site laying;<br>4, earthmoving: near the procurement.

All construction materials must be inspected and tested in advance, and only after they are qualified can they sign the supply agreement with the supplier, plan and organize the production process, and ensure that the project progress is not delayed due to material problems.<br>Main material supply conditions:<br>1. Geotechnical materials such as pipe, geotextile, plastic drain board: the land transportation of the project is convenient, and the geotextile and plastic drain board are purchased by professional manufacturers;<br>2. Clay cofferdam: local materials;<br>3. Air membrane: factory prefabricated, field laid;<br>4. Earthwork: purchased nearby.<br>