It is a manufacturer I always use, but this time the product has screw threads to adjust
It is subtly different feeling from usual.
Because we ordered two books, the difference is that you can not stretch smoothly compared
There is not special influence on work but there is little spirit of thread mountain
I feel that it will be faster to break down.
Because it is a vacuum system equipment, there are many pipes, installation is also made narrow, making it difficult place. A bigger size is good in terms of pipe fastening, but this size is reasonable and I'm happy that it will chew the pipe tightly for the size.