It is often asked that the shape of I-beam and H-beam is similar. How to choose it in practice? Many people who have worked in the construction industry for many years cannot explain.
Car universal jointUniversal joint is universal joint, English name universal joint, is the realization of variable Angle power transmission parts, used to change the direction of the transmission axis position.
Cross shaft's several main machine tools. Below we mainly choose cylindrical grinding machine and surface grinding machine to do a brief description.
The universal joint is a mechanical part that realizes variable Angle power transmission and is used to change the direction of the transmission axis.