What makes a good polyacrylamide H or G Huaguang the most reliable

What makes a good polyacrylamide H or G Huaguang the most reliable 
 What makes a good H polyacrylamide or the most reliable Huaguang G, polyacrylamide can be divided according to their ionic anionic polyacrylamide, cationic polyacrylamide and non-ionic polyacrylamide. Huaguang engaged in the production of polyacrylamide twenty years, has the rich production experience, Huaguang polyacrylamide dedication to customer service, ensure quality, most affordable price. 
 Polyacrylamide 
 Plastic inclined tube 
 Plastic packing 
 Filter 
 Filter 
 PAC 
 Shale filter