| 摘要 |
Hoop iron comprises two metallic sheets, first one (1) planed, and second one (2) with grooved section, attached together us glue or spot welding. When used for plastomer or elastomer sections, each sheet has thickness between 0.1 to 0.2 mm, global thickness is then between 0.5 to 0.60, due to allowances for grooves. An Independent claim is also included for the polymer or elastomer section. |
