This is an inquiry message about dxf cad files in the 108th China Canton Fair. (这是一条买家关于"dxf cad files"的询盘信息，来自第108届中国广交会。)Inquiry Message (询盘信息) dxf cad files I am looking for dxf files to continue with design until I receive cylinders Contact Info (联系信息) Mike DeMars N0P 1M0 Com" Dust control We have a hoffman blast room that is about 8 yers old.We have had to change the blast material and are having a hard time keeping the filters from plugging and we are getting hloes in the filters.Do you have or know of any aftermarket treatment for the dust that goes out the exhaust?could we control it with any kind of water system?The problem is the filters are not good afetr 30 days.
