Pall Ring packing is a new type of filler, appear to be improved for some of the major shortcomings of the Raschig rings, is to open the eight-story rectangular little windows, small window leaves the ring center to take in the wall of the ordinary Raschig rings, on the following location of the lay

Colin Powell's ring filler is a new filler, is for the Ring pull some of the major drawbacks to be improved, it is common in the drop-down western wall of the small 8 storey rectangular Windows, Windows leaves in the center of the ring on the ground, and the following window location layer to each o

Pall is a new kind of packing, is aimed at the laxihuan of some major disadvantages arising from improved, is in general open eight-story rectangular small Windows on the wall of the laxihuan, small leaves in the center of the window use, surface Windows overlap each other up and down. Laxihuan pack