A mold typically four-hole four-hole grass brick grass brick mold professional mold used to produce eco-bricks made using lower polypropylene grass has anti-wear, anti-fatigue, patience, deformation, and other characteristics using long production Slope best choice! There are three commonly used material one is referred to as engineering plastics polypropylene (PP), there is a tree called (abs), another is a special steel sheet metal, slope protection brick plastic mold is generally used engineering plastic polypropylene pp as raw materials. Replace heavy metal polypropylene renewable raw materials, this renewable resource use, improve the strength, hardness, high temperature and other properties of polypropylene pp, but not completely done, in the future development and use of the process , will increase four-hole grass brick mold plastic mold of the original on the basis of their hardness, strength, making this material can replace the use of larger metal industry. Polypropylene pp raw materials, PP is obtained from propylene and a thermoplastic resin polymerization, is a semi-crystalline materials, it is harder than PE and has a higher melting point. Polypropylene (pp) has good plasticity, soluble and toughness. ABS resin good moldability, processed products smooth surface, easy to dyeing and electroplating. Advantages of ABS resins are impact resistance, noise resistance, scratch resistance, heat resistance and better. Of course, whether it is the use of raw materials pp, or ABS resin material, the molding process is similar, namely particles into a liquid at high temperatures, the liquid flows into the specific good iron plastic mold, using liquid circulation to cool, then according to the plastic mold plastic Specifications and plastic, of course, plastic mold is based on each client's specific drawings, resulting in four-hole grass brick mold of various sizes.