Under atmospheric and room temperature conditions, the friction factor and wear rate of chrome plating surface are very low. The thick-walled shaft is made of casting method, and the inner surface can be attached to the inner surface of the […]
Under atmospheric and room temperature conditions, the friction factor and wear rate of chrome plating surface are very low. The thick-walled shaft is made of casting method, and the inner surface can be attached to the inner surface of the […]