Why is the price different with 750ML polyurethane foam? How to buy?

However, many consumers, including dealers, have not understood one problem. In fact, the foaming rubber industry is based on its quality and gross weight based on its price. Generally, there are 300 grams, 330 grams and 380 grams in 500ML. 750ML has 500g, 550g, 600g, 650g, 750g, 800g, 900g, 930g, etc., so when we buy it, we have to ask clearly what quality of foaming gum is, and how heavy the gross weight of this foaming gum is, so as not to let some dealers with inferior charge, with less charge more. In terms of purchasing, for dealers, it should be seen that their mode is mainly wholesale circulation, or do terminal doors and Windows factory and engineering. If it is wholesale circulation, it is recommended to choose some mid-range products (such as Shanghai shuo's universal model with 750g gross weight), which can ensure a certain advantage in quality and price. If it is to do in the terminal doors and Windows factory or project based, then it is recommended to choose a large number of grams, the number of delay meters, cost-effective products. (for example, dreamworld n o.1 and dreamworld no.2 with 900g gross weight from Shanghai shuo DE company)