| 摘要 |
PCT No. PCT/CH89/00057 Sec. 371 Date Nov. 6, 1989 Sec. 102(e) Date Nov. 6, 1989 PCT Filed Mar. 21, 1989 PCT Pub. No. WO89/09105 PCT Pub. Date Oct. 5, 1989.In a process for producing a metal plate in such a way that it can be joined up to form a chain, use is made of a casting or forging tool, which forms a base part and a sole part of the plate, a specific sole part from several sole parts being associated with the base plate. The tool comprises at least one part forming the base part of the plate and another part forming the sole part of the plate. The resulting plate has reception rings on one plate side and an equal number of ring notches on the other plate side and side guides on the plate underside and at least one engagement gap.
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