chemical agent

1.PA has the good anti-homoiothermy, anti-weary and changes the strength, the anticreep, and the good wearability, bears the chemical agent.

PA具有良好抗恒温、抗疲劳和应力、抗蠕、较佳磨、化学剂。

2.The external factor like chemical agent, the cosmetics, the zootoxin, the fish and shrimp, the pollen, the dust, the solarization, scratch with the finger grasp and so on.

外因如化学制剂、化妆品、动物毒素、鱼虾、花粉、尘埃、日晒、搔抓等。