优点:耐热耐寒防腐防酸碱化学稳定减磨耐磨无毒害机械性好低摩擦系数绝缘性自润滑性耐折性耐开裂性压缩强度好         我司供应以下产品：   PFA 6515NZ 美国3M 用途： 电线电缆料 特性备注：低摩擦系数 共聚物 抗溶解性 抗紫外线性能良好 良好的电气性能 耐化学性良好 耐气候影响性能良好 耐热性，高 无粘性 重要参数： 熔体流动速率:15 g/10min 密度:2.15 g/cm3 弯曲模量:620 MPa 硬度:60 生产厂商：美国3M公司    PFA 6510GV15WZ 美国3M 用途： 其它 特性备注：低摩擦系数 共聚物 抗溶解性 抗紫外线性能良好 良好的电气性能 耐化学性良好 耐磨损性良好 耐气候影响性能良好 耐热性，高 无粘性 重要参数： 熔体流动速率:10 g/10min 密度:2.2 g/cm3 生产厂商：美国3M公司      介绍:   PFA适于制作耐腐蚀件，减磨耐磨件、密封件、绝缘件和医疗器械零件。   PFA适于制作高温电线、电缆绝缘层，防腐设备、密封材料、泵阀衬套，和化学容器。     详解:   grandpapa has become my physician, and I have the greatest confidence in him, because he knows everything."  "Do you then really suffer­" asked Morrel quickly.  "Oh, it must not be called suffering; I feel a general uneasiness, that is all. I have lost my appetite, and my stomach feels as if it were struggling to get accustomed to something." Noirtier did not lose a word of what Valentine said. "And what treatment do you adopt for this singular complaint­"  "A very simple one," said Valentine. "I swallow every morning a spoonful of the mixture prepared for my grandfather. When I say one spoonful, I began by one -- now I take four. Grandpapa says it is a panacea." Valentine smiled, but it was evident that she suffe