Rubber and its products in the long-term storage and use of the process, due to heat, oxygen, ozone, variable metal ions, mechanical stress, light, high-energy radiation, and other chemical substances and mold erosion, will gradually sticky, change Hard brittle or cracked. The factors that cause the aging of rubber are: oxygen, ozone, heat, light, mechanical stress, moisture and other factors
General plasticizer migration refers to the plastic products in the plasticizer to volatile, oozing, dissolution, etc. to migrate to the surface of the product, with the contact with the media or released into the environment. Which is involved in the plasticizer from the product to the air, the migration to contact with solid or liquid medium, and plasticizer compatibility and
November 3, 2016, the US Customs issued a notice under the WTO rules and the 1930 Tariff Act requirements, the US Department of Commerce in the anti-subsidy preliminary ruling 120 days after the suspension of the imposition of countervailing duties. The US Customs will no longer impose countervailing duties on passenger-car tires imported from China since November 2, 2016. The
