Plug: only the pipe does not need to plug up the mouth, play a sealing role. It is similar to the blind plate, head and pipe cap.

Products used to plug holes made of concrete stoppers (concrete). A small cylinder used to block the round holes at both ends of a concrete round orifice to prevent it from entering the orifice when concrete is poured

Weld the plug by welding up the hole.

The plug is divided into quadripartite plug, hexagonal plug, round head plug, the implementation standard ANSI B16.11,GB/T14383,BS 3799,

The plug, also known as a pipe cap, cap, pipe cap, or muffler, is installed on the outer thread at the end of the pipe to cover the pipe. Used to close the pipe, the same as the pipe plugging, can be directly on the pipe, no other pipe fitting is required. The plugging head includes the design of convex plugging head, conical shell, reducing section, flat cover and tightening mouth.