3, sealing the rain test. Tightness test body is to examine the quality of the central part of the manufacturing, inspection and testing requirements for rain assembly members should be familiar with the structure and quality requirements of the cab factory body so as not to produce test results in determining miscarriage of justice and wrongful convictions. Specific methods rain tightness test as follows: ① the vehicle parked in the rain indoor specified location. ② inspectors into the cab, and then close the doors, windows and manhole covers. When the rain starts ③ equipment until water enters steady state (typically 2min) began to rain test, record rain time, observe and record the car flashing the seals. ④ When the rain test cab diagram, related seepage, leakage judge the situation: seepage: Water slowly emerge from the cracks in the surface and attached to the body, including protecting spill phenomenon; drip: Water droplets emerge from the cracks in a in the body surface intermittently falling phenomenon; water: water emerges from the gap, and along or away from the inner body to continuously flow around the phenomenon. ⑤ reaches a predetermined time after the rain, rain shut down equipment cab, end test. ⑥ To ensure product quality, new products manufactured car should be able to reach Delong cab, cab Shaanqi no leakage requirements. Delong cab automobile body structure includes: a housing body (BIW), doors, windows, sheet metal front of the car parts, interior and exterior body parts and body accessories, seats and ventilation, heating, cooling, air conditioning units, etc. and so on. The company set the cab before the development, production, sales, professional management Delong cab, housing, sheet metal parts, both interior and exterior parts and frame assembly, and other car accessories. Companies, according to the different needs of specific users, tailored to a variety of cab and cab assembly housing. Cab, Jinan Yiu Cheung, cab diagram provided by Jinan Yiu Cheung Trading Company. Jinan Yiu Cheung Trading Company (www.jinanyaoxiang.com) strong, credible, in Jinan, Shandong's engine assembly industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving Jinan Yao innovative ideas will lead you hand into the brilliant harmony for a better future!