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an isotactic, syndiotactic and atactic material was three configurations, isotactic industrial products as a main component thereof. Polypropylene also includes a small amount of propylene and copolymers, including ethylene. Usually translucent colorless solid, odorless, non-toxic, is the lightest common plastic. Corrosion resistance, tensile strength of 30MPa, strength, rigidity and transparency better than polyethylene. The disadvantage is the low temperature impact resistance, easier to aging. Bags color is generally white or gray, non-toxic, tasteless, human bodily injury is generally small, www.woven-sacks-manufacturers.com .