cheap plastic bags wholesale china suppliers

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seat: Beijing
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Last update: 2017-11-12 14:58
Browse the number: 95
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China plastic bag manufacturers.Custom printed plastic vest bags, punching bags,opp bags,carrier tote bags,ziplock bags,food bags,garbage bags,wholesale suppliers in china.


 


 


common point in these 42 farms, they found breeding boar semen stored in plastic bags, all from the same company, and these bags are used in a cyclic lactone and ether of bisphenol A glycine and other chemical substances. The researchers noted that the general pigs fertilized with 84 percent chance of pregnancy, but if the impact of chemicals by plastic sperm, the pregnancy rate is reduced to 58%, once changed the breeding semen storage containers, pigs and restore productivity original state. Experimenters believe that sperm is not affected by chemicals in plastics destruction, because in the microscope, the sperm cell motility is still contaminated with the general is no different, they estimate the impact of chemicals in the sperm cell DNA, leading to DNA by loss or mutation, so that implantation of a fertilized egg can not or difficult to develop. So that they are worried about is that these chemicals are widely used in daily life, such as cyclic lactone heavily on beef sliced ??potato chips bag or other packaging, and more use of bisphenol A in the United States 95% of the canned anti-endometrial rust plastic coatings, if fertility is affected pigs may also affect human fertility. (Science News) 

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