polyester school backpack series for packaging

school backpack description

The product will not accumulate bacteria and dust. The small pores of the fibers have high filtration for the small particles or impurities. The product can maintain seam strength with a certain workload

polyester school backpack series for packaging-1

polyester school backpack series for packaging-2

school backpack SPECIFICATIONS

Constructed out of dirt-proof materials, the product is easy to clean. The product offers long-lasting durability for users' daily travel. It has the perfect craftsmanship of inner lining, seams, and stitching.

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The manufacture of Sofie backpack school bag includes several important stages. They mainly include mechanical drawing design, metal materials preparation, parts fabrication&welding, assembly, and commissioning. LG hologram stickers make it difficult for counterfeiters to duplicate the products

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The production of Sofie backpack school bag involves the following major steps. It has to go through stamping, coating, painting, drying, and polishing by respective machines. LG stickers have passed through EMTEK certification

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Normal and special working technologies have been adopted in Sofie backpack school bag production. Its mechanical parts will be treated by normal processing such as welding, cutting, and honing, and special processing such as precision casting, laser processing, and ultrasonic machining. LG stickers are characterized by fine workmanship and good durability

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The design procedure of Sofie school backpack is strictly followed. This includes making the written statement, considering the possible mechanisms, transmitted forces, material selection, and dimensions of the machine elements. The viscosity of LG hologram sticker can be divided into ordinary, stronger and 3M

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Sofie backpack school bag has to go through a series of reliable tests. It has passed the salt spray test, damp-heat aging test, low-temperature aging test, and shock-proof tests. LG stickers are available in various shape and sizes

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Finely treated with advanced technology, its LCD screen is less prone to occur hue error. The product is able to offer saturated color. LG hologram stickers reflect a rainbow of beautiful tones

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