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x******l

The design of Dezheng hardcover engineering notebook is professional. It is carried out by our designers who have taken many factors into considerations such as geometric stress of the parts, the flatness of section, and connection mode. The well-selected ferrules of the product make sure no mounting error

m******d

Assembly and debugging for the mechanical parts of Dezheng hardcover engineering notebook will be carried out. The assembly works are rinse, connection, calibration and configuration, and experiment. It offers a smooth linear motion with high precision

s******q

The entire manufacturing process of Dezheng hardcover engineering notebook is strictly controlled. It may be divided into several important processes: the provision of working drawings, the selection&machining of raw materials, veneering, staining, and spray polishing. It can withstand the combined loads of both radial and thrust

o******j

High-end textile manufacturing machinery is used for Dezheng hardcover engineering notebook production. It is made of drawing machine, carding machine, roving machine, combing machine, and other equipment. It has low torque capacity when starting and running

r******q

Dezheng hardcover engineering notebook has passed a wide range of tests. They cover stress points testing, support points testing, yield points testing, wear resistance testing, toughness testing, friction force testing, etc. The roller and thrust bearing are separable, making it easy to conduct maintenance and inspection

z******v

The product features outstanding stability at different temperatures. When exposed to the high temperature, the viscosity and texture won't be easy to change. It has low torque capacity when starting and running