Power conduit caps, also known as power conduit inlets or inserts, are widely used, easy to install, and commonly found in everyday life.

Power pipe caps in hot solvents, some thermoplastic plastics will be attacked and dissolve, such as polyethylene dissolving in xylene. Thermosetting plastics cannot be dissolved in solvents. As a source of rapid industry development, the plastic bottle cap industry has great potential. For high-quality products like power pipe plug and power pipe塞, when using solid powder or granular additives, grinding must be done on a three-roll mill equipped with plasticizers and plastic valve caps.