国产真实伦在线播放,九九精品成人免费国产片,国产强奷在线播放免费不卡,日本无码h纯肉黄动漫a红桃

News Center

Hugeo Precision Mold Group
Shenzhen:
手機(jī):13392185957
聯(lián)系人:王先生
Qingdao:
手機(jī):13392185957
聯(lián)系人:王先生
Hong Kong :
00852-27935511
E-mail:[email protected]
Site:www.europe-asia.com.cn

Your position is right now:Home > News Center > InformationInformation

Use silicone products curatives

Time:2015-10-14【Print this page】 【Return

Vulcanizing agent, also known as cross-linking agents. Rubber molecular chain enables a crosslinking reaction, so that linear molecules form three-dimensional network structure, reduce the plasticity, elasticity agent to increase the material. In addition to certain thermoplastic rubber vulcanization is not required, the natural rubber and various synthetic rubbers are required to fit into a vulcanizing agent. Vulcanized rubber after having precious value, greatly improving the mechanical properties

收縮