北京市塑料十二厂生产的冰梅牌高压PE农用长寿薄膜具有机械强度高、使用寿命长的特点。抗张强度大于190公斤/厘米~2,最高可达245公斤/厘米~2;使用寿命比普通棚膜延长三倍,厚度为0.12毫米的长寿膜可以连续使用两年之久。此种薄膜透光性好(透光率达85％以上)、不透水、不透气。既具有很好的保温保湿作用,又可保证光照度。适用于塑料大棚和地膜覆盖。使用这种塑料大棚种植蔬菜可以提高产量20％以上。此种薄膜无毒,对农作物生长无害。使用温度范 Beijing Twelve Plastic Factory production Bingmei licensing high pressure PE agricultural longevity film with high mechanical strength, long service life characteristics. Tensile strength greater than 190 kg / cm ~ 2, up to 245 kg / cm ~ 2; life than the ordinary film to extend three times the thickness of 0.12 mm longevity film can be used continuously for two years. This film has good light transmission (light transmittance of 85% or more), impervious, airtight. Both have a good thermal insulation effect, but also to ensure the illumination. Suitable for plastic sheds and mulching. Growing vegetables using this plastic greenhouse can increase yields by more than 20%. This film is non-toxic and harmless to crop growth. Operating temperature range