First, wear resistance; because the valve core of the hard seal ball valve is alloy steel spray welding,
In the process control system, the actuator consists of two parts: the actuator and the automatic adjustment mechani···
(1) Actuators are classified into pneumatic, electric and hydraulic actuators according to the driving energy used.
Actuators are an essential part of an automated control system. Its function is to accept the control signal sent by···
The plastic pipe is generally made of synthetic resin, that is, polyester as a raw material, adding a stabilizer, a ···
From the birth of floor heating to the present, there are several types of pipes used as floor heating pipes.