| 摘要 |
PCT No. PCT/US93/04533 Sec. 371 Date Aug. 9, 1993 Sec. 102(e) Date Aug. 9, 1993 PCT Filed May 10, 1993 PCT Pub. No. WO93/23507 PCT Pub. Date Nov. 25, 1993.A lubricating oil purifying device adapted to be installed in the flow line of lubricating oil passing into an oil filter, comprising a solid body made of acid-reactive material and having a central orifice in which a coupling ring is positioned.
|
