一、严把材料采购关我们公司的材料管理体制是集中采购、分级管理。绝大部分材料由公司的材料供应分公司供应，我们自已只采购工程所急需的化工、小五金及甲方指定的其他材料，直接采购量不大。即使这样，我们也没放过这个关口。因为“针大的洞，会漏斗大的风”。所以我们并没 First, strictly control the procurement of materials The material management system of our company is centralized procurement and hierarchical management. Most of the materials are supplied by the company’s material supply subsidiary. We only purchase the chemicals and hardware that are urgently needed by the project and other materials designated by Party A. The direct purchase volume is small. Even so, we have not let go of this pass. Because “a large hole will funnel a big wind.” So we did not