stop water from pipe on the concrete wall

Purpose.
1. Make the hole on concrete block.
2. stopping the water from the pipe like on concrete wall







Advantege:
1.Very Econamical!
can use more than 100 times (depends on working enviroment)

2.Easy oeration!
NO need to operate during the process. just wait for the concrete gets hard.

3.Easy pulling!
compares to existing way (using prestressing steel pipe), because the [Mold bag] to
easy to release from the concrete.it is much easier to pull out the pipe at the final step.

4.Keeps the concrete quality!
There is no need to pull out the pipe at a certain time.
so the quality of concrete will be stabled.

5.Safe installation!
As a material of shaping a mold, [Mold bag] is light and easy use.



How to make a hole in concrete
1.Locate the [mold bag] before pouring the concrete
2.Pump air into [mold bag]
3.Air out when the concrete gets hard
4.Pull the [mold bag] out, done!