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为保证机械、电器产品的涂装质量,钢铁部件在涂装前必须经过除油处理,并应达到合格的标准。过去我国对金属表面除油程度进行检查,都是在专用设备上,采用激光扫描的方法,做一次检验就需60多元。机械工业部广州电器科学研究所和江都县特种涂料厂研制生产的G型极性溶液和A型验油试纸,
In order to ensure the quality of the painting of machinery and electrical products, steel parts must be degreased before painting and should meet the qualified standards. In the past, China’s metal surface degreasing degree of inspection, are in special equipment, the use of laser scanning method, to do a test on the need for more than 60 yuan. Guangzhou Institute of Electrical Machinery Machinery Industry and Jiangdu County, special paint factory development and production of G-type polar solution and A-type oil test paper,