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 AC-5600 大金美国 用途： 其它 特性备注：低粘度、高ESCR（抗应力裂纹）、抗燃、良好的电气性能、良好的流动性、耐化学性良好、耐气候影响性能良好 重要参数： 熔体流动速率:1 g/10min 密度:2.12 g/cm3 拉伸强度:19.6 MPa 断裂伸长率:250 % 硬度:60 生产厂商：大金美国公司    PFA AC-5820 大金美国 用途： 其它 特性备注：低粘度、高 ESCR（抗应力裂纹）、抗燃、良好的电气性能、良好的流动性、耐化学性良好、耐气候影响性能良好 重要参数： 熔体流动速率:5 g/10min 密度:2.12 g/cm3 拉伸强度:19.6 MPa 断裂伸长率:250 % 硬度:60 生产厂商：大金美国公司    PFA ACX-31 大金美国 用途： 其它 特性备注：低粘度、高 ESCR（抗应力裂纹）、抗燃、良好的电气性能、良好的流动性、耐化学性良好、耐气候影响性能良好 重要参数： 熔体流动速率:1 g/10min 密度:2.12 g/cm3 拉伸强度:19.6 MPa 断裂伸长率:250 % 硬度:60 生产厂商：大金美国公司       介绍:   PFA是半透明粒料，注塑、挤出成型。成型温度度，475度以上容易引起变色或发生气泡。并注意脱模会较困难。   PFA因熔融的材料对金属有腐蚀作用，长期生产，模具需要电镀铬处理。     详解:    I have come in fifteen hours."  Albert opened the letter with fear, uttered a shriek on reading the first line, and seized the paper. His sight was dimmed, his legs sank under him, and he would have fallen had not Florentin supported him.  "Poor young man," said Monte Cristo in a low voice; "it is then true that the sin of the father shall fall on the children to the third and fourth generation." Meanwhile Albert had revived, and, continuing to read, he threw back his head, saying, "Florentin, is your horse fit to return immediately­"  "It is a poor lame post-horse."  "In what state was the house when you left­"  "All was quiet, but on returning from M. Beauchamp's,