Hard plastic sheet: 1.Low density 2.Good heat resistance 3.Good competitive price 4.High surface strengt Hard plastic sheet :I. PP Sheet Description- The product is a mixture of isotactic and atactic polypropene is based on catalysts of the Ziegler-Natta type that produce a product with an isotactic content of 90percent or more. - PP looks like PE, but PP is more transparent, lighter, and second ...