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Thermoplastic injection molding is the most common way to manufacture plastic parts. many types of injection molding resins and material choices from commodity grades to engineering grades, along with material selection expertise ,such as :ABS, Nylon 6/6, Polypropylene, Polyethylene...


High density polyethylene - HDPE - is a very popular material for water pipes. It is resistant to chemical easy and light weighted, long life time, low friction, relatively cheap, flexible and sun resistant. ...


LDPE and LLDPE have unique rheological or melt flow properties. LLDPE is less shear sensitive because of its narrower molecular weight distribution and shorter chain branching...


Polypropylene is one of the most versatile polymers. The density of PP is between 0.895 and 0.92 g/cm³. Therefore, PP is the commodity plastic with the lowest density. There are three general types of polypropylene: homo polymer, random copolymer, and block copolymer. The characteristics and properties of polypropylene resins are important to a smooth and effective molding or extrusi


LDPE (Low Density Polyethylene)
has the most excessive branching. This causes the low density to have a less compact molecular structure which is what makes it less dense. It has a density of 0.910-0.925 g/cm3.
LLDPE (Linear Low Density Polyethylene) has a significant number of short branches. LLDPE higher tensile strength and higher impact and puncture resistance than the LDPE. It has a density of 0.91-0.94 g/cm3.


HDPE (High Density Polyethylene)
has minimal branching of its’ polymer chains. Because it is denser it is more rigid and less permeable then the LDPE. It has a density of 0.941-0.965 g/cm3. HDPE is a versatile thermoplastic polymer with many performance benefits. Its overall toughness, flexibility and low temperature . One of most common application is HDPE pipe, which is an excellent choice for the production of superior physical and chemical properties of the pe and pipe applications.

Other Products

The Other products
GMY Co. also supply ABS , PC and PET in order to customers requirements.
Mobarakeh Industrial Area, TAFT, YAZD, IRAN
Postal Zipcode : 8991793461
Tel : (+98) (35) 32632610-15
Fax : (+98) (352) 32633153
E-mail : manager@gmy.co.ir
yazd,taft,Mobarake industrial zone
Code : 8991793461