Because the tooth profile of the gear rack is straight, the pressure angle at all points on the tooth profile is the same, equal to the inclination angle of the tooth profile. This angle is called ...
Coal bunkers in coal mine production are basically made of concrete, and their surface is not smooth, the coefficient of friction is large, and the water absorption is high, which are the main reas...
Are you looking for high-performance materials that can meet all your needs? Look no further because UHMWPE sheet or PE1000 sheet is the answer! Also known as ultra-high molecular weight polyethyl...
Hardness pvc board: the quality of this pvc board product is generally gray and white in color, and pvc color hard board can also be produced according to customer needs. Stability, corrosion resis...