| 摘要 |
PROBLEM TO BE SOLVED: To reduce the metal mold cost for moldings. SOLUTION: A plastic moldings obtained by supplying a heated and fused thermoplastic synthetic resin into the cavity of a prescribed metal mold has a unit moldings having an engaging protruding piece 28 longitudinally protrudes on one lateral side and an engaging hole 29 corresponding to the engaging protruding piece 28 in the other symmetric position. A pair of such unit moldings are combined longitudinally so that each engaging protruding part is engaged with the corresponding engaging hole 29, whereby a hanger frame body 1 is formed. |
