Air packer's special feature
Air packer press it using liquids like pressed
air or water, and air packer can be shut
tightly through packer rubber's expand in the
not-even surface or un-even hole only.
Stainless steel pipe in the center get
injection one's end is connected with the
coupling that is linked through welding of
stainless steel pipe, the other part is easy to
be slided with the stainless steel pipe of
being in center freely and packer rubber is
made of rubber being tied with special wire
that has high pressure and abrasion
resistance.