with TPU reflective hat school backpack series for children

Sofie trendy school backpacks has to be tested before being assembled into the final product. Its every part such as hydraulic system, engine, and other moving parts will be scrutinized and debugged by mechanical engineering technicians. It has passed the tensile loading test with positive outcome

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Sofie school backpack will be monitored in terms of quality. Its major parts, including engine, motor, and hydraulic parts will be tested to meet the standards set by the company. It has passed the tensile loading test with positive outcome

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Testing for Sofie school backpack includes several aspects. It will be tested in terms of its work blank, components and parts, and raw materials in virtue of measuring appliances that are designed for the machinery. The product is characterized by enhanced moisture resistance

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During the quality inspection of Sofie trendy school backpacks, different inspecting approaches will be adopted. It will be checked by visual examination, radiographic inspection, or magnetic crack detection. The product is highly resistant to corrosion conditions

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The manufacture of Sofie trendy school backpacks involves several stages. They mainly include the installations of cams, shafts, and bearing, the design of injection-molded plastic parts, fixtures, and gauges. It has good durability, with 500 times of insertion and removal

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Sofie trendy school backpacks is manufactured under precision casting workmanship. It has to go through cutting machining, thermal treating, and surface treating by skillful technicians. The product is highly resistant to corrosion conditions

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The product has the advantage of strong compatibility. It can perfectly work with other mechanical systems to bring out the best results. With low attenuation coefficient, the product features long relay distance

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