convenient school backpack supplier for students

school backpack description

This product is very resistant to deformation. It can withstand repeated stretching because of its excellent fatigue durability. It is equipped with water-resistant zippers and sealed seams

Sofie school backpack supplier for students-1

Sofie school backpack supplier for students-2

school backpack SPECIFICATIONS

The product can maintain seam strength with a certain workload. The product doesn't easily wrinkle, shrink or elongated after washing. Made of highly durable materials that are tightly woven, it can effectively resist puncturing.

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Sofie wheeled backpacks for school meets the requirements of the destination market’s regulations. It must comply with REACH directives, CPSIA, SASO, and AATCC. It is widely used in the thermal power plants, pharmaceutical industry, biochemical industry, etc

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Sofie wheeled backpacks for school will go through furniture performance testing to national and international industry standards. It has passed testing of GB/T 3325-2008, GB 18584-2001, QB/T 4371-2012, and QB/T 4451-2013. It is highly praised for its automatic temperature and pressure compensation function

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All of the components and parts of Sofie school backpack are made from solid materials which are guaranteed to free of formaldehyde to ensure hardness and longevity. Its accuracy and high precision contribute to its low detection limit

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The design of Sofie school backpack is elaborate. It addresses the following areas of research and inquiry: Human Factors (anthropometry and ergonomics), Humanities (psychology, sociology, and human perception), Materials (features and performance), etc. It has obtained CE, SGS, FDA, and other certificates

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In the design of Sofie school backpack, various elements have been thought of. They involve physical stress points, weight distribution, arch support, and various foot shapes. The product has a function of automatic calibration

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To ensure the high quality, the product has been strictly tested under the quality control standards. It is widely accepted for its high measurement accuracy

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Sofie school backpack supplier for students