夜激无码av毛片不卡_一级欧美做片免费观看_中文av乱片在线播放_2022自拍偷在线精品自拍偷

  • 24-hour global service hotline+86 (020)31523725, 37523936, 31523097

NR

NR natural rubber

產(chǎn)品詳情

Generally speaking, natural rubber refers to an elastic solid made from natural rubber latex collected from the Brazilian rubber tree through processing steps such as coagulation and drying. Natural rubber is a natural polymer compound with cis-1,4-polyisoprene as the main component. Its rubber hydrocarbon (cis-1,4-polyisoprene) content is above 90%. It also contains A small amount of protein, fatty acids, sugar and ash.

Title

Guangzhou?Best?Rubber?And?Plastic?Co.,Ltd.

  • Tel:(020)31523725, 37523936, 31523097
  • Fax:(020)37403270, 37403280
  • Email: sales@gz-best.com/export@gz-best.com
  • Add:No. 21 Liangtian Middle Road, Baiyun District, Guangzhou City, Guangdong Province
  • Add:25-27 Yanling Road, Guangzhou