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w******c

Inspections for Sofie polyester backpack will take place during and after production. During production, the product will be checked for sewing quality (seams, stitches, and openings), and physical properties (resistance to tearing, shrinkage, color fastness) after production. It can also be passivated, anodized, and degreased to meet the needs of different technical parameters

h******o

The design processes of Sofie mini backpack are of professionalism. These processes include recognition of its need or purpose, selection of a possible mechanism, analysis of forces, material selection, design of elements (sizes and stresses), and detailed drawing. It is characterized by excellent tensile strength

x******r

Sofie polyester backpack goes through comprehensive testing to ensure quality. These tests cover workmanship, safety, stability, strength, impacts, drops, and so forth. Coated with a protective layer, the product is anti-rust

s******s

Sofie mini backpack has been tested for many times. It has gone through tests for colorfastness, wearing resistance, softness, bending, load-bearing capacity, and tensile strength. With hardened steel housing, it has improved durability and reliability

d******l

A wide variety of manufacturing machines are applied in Sofie polyester backpack production. They are mainly spreading machine, cutting machine, hemming machine, needle detector, sewing machine, flatlock machine, ironing machine (or electric/steam iron), etc. The product is not easy to crack even under the high temperature

j******a

polyester backpack breaks through the limitations of mini backpack which creates a new world of mini backpack. The dimensional accuracy of the product reaches 0.005mm

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Sofie mini backpack supplier for business