| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide, at low cost, a double layer fluororesin tube formed by firmly joining an inner layer side tube with excellent corrosive resistance and chemical resistance to an outer layer tube with excellent gas impermeability and allowing less transmission of gas. <P>SOLUTION: This double layer fluororesin tube comprises the inner layer tube formed of PFA, FEP, or ETFE and the outer layer tube formed of PVDF. The inner layer tube is welded to the outer layer tube. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
