Is four-tooth wire needle prick 
 ESP Accessories - Corona wire: 
 ESP rolling production line cathode ray sets (whole mount, Split Mountain); punch a few, large lathe 13 sets; Accessories: star line, imported stainless steel spiral, cross spur line, V-wire needle prick, needle prick spur line, is four-tooth wire needle prick, prick line is two needle teeth, oblique four-tooth wire needle prick, prick-line connector (hole), prick and prick helical rod connector cable connector (Oval hole), etc. 
 Multi-tube cyclone (referred to as multi-tube dust collector) is composed of several single-cyclone combined board of burning plastic. Can be a number of smaller diameter cyclone in parallel, the cyclone can also be linked together with a larger diameter pre-cyclone, after the class with a small diameter. Parallel multi-tube dust collector can be made vertical, horizontal and tilt and other structures. Chinese production of multi-tube dust collector shape, cylinder diameter 150 and 250 mm in two, with nine, 12 and 16 and other specifications. Multi-tube dust collector can remove more than 3 microns particle size of dust particles, the pressure loss of 50 to 200 mm water column, collection efficiency of 85 to 95%.