When the 260 ton casting crane was used to make the trolley, the requirements of the customer's technical agreement were extremely strict. Cai sanjun actively coordinated with the relevant departments of technology, process, quality inspection, etc., implemented quality control measures, and carried out welding in strict accordance with the welding process, so as to ensure that the appearance quality of the weld was qualified before the machine installation It is this kind of quality consciousness of "do it as you want" that not only ensures the accuracy of car production, but also improves the work efficiency, and has been highly praised by customers.