| 摘要 |
PCT No. PCT/EP97/04230 Sec. 371 Date Jul. 31, 1998 Sec. 102(e) Date Jul. 31, 1998 PCT Filed Aug. 4, 1997 PCT Pub. No. WO98/06511 PCT Pub. Date Feb. 19, 1998Process for repairing plastic coatings of metal pipes, that allows the repairs to be done in a very short time, by applying, in specific operating phases, a polyolefin adhesive in powder form and polyolefin tapes, and then applying heat using an inert gas-shielded flame. |
