Each plastic ware, there is a number at thebottom, it is a triangle with arrows, triangle there is a number. These Numbersrepresent the different plastic material. They have the most security products,can be repeatedly used, and some of the repeated use is likely to release toxicsubstances.

PP material is thermoplastic, non-crystalline, shrinkage rate, forming temperature range is wide, good liquidity, PP plastic usually suitable for blow molding, extrusion and injection molding.

PE basic is divided into three categories, namely, high pressure low density polyethylene (LDPE), high density polyethylene (HDPE) and linear low density polyethylene (LLDPE). Film is its main processing products, followed by sheet and coating, hollow containers such as bottles, cans, barrels and other all kinds of injection molding and blow molding products, pipes and wire, cable insulation and sheath, etc.

Injection molding is the use of injection molding machine (or injection machine) to thermoplastics melt under high pressure into a mold Canon of cooling and solidification get products. Plastic injection can also be used for thermosetting plastic and foam plastic forming. Injection molding is the advantage of production speed, high efficiency, operation can be automated, to forming of complex shape parts, especially suitable for mass production.

PP   聚丙烯polypropylene   

PS   聚苯乙烯polystyrene   

PVC       聚氯乙烯poly(vinylchloride)         

PC   聚碳酸酯polycarbonate

ABS    丙烯腈－丁二烯－苯乙烯塑料acrylonitrile-butadiene-styreneplastic     

PET 聚對苯二甲酸乙二酯poly(ethyleneterephthalate)    

PE-HD    高密度聚乙烯polyethylene,high density  

PE-LD    低密度聚乙烯polyethylene,lowdensity  

PMMA    聚甲基丙烯酸甲酯poly(methylmethacrylate)   

POM       聚氧亞甲基；聚甲醛；聚縮醛polyoxymethylene;polyacetal;polyformaldehyde