| 摘要 |
The present utility model relates to a spacer for fiber cement boards used as wall surfaces in concrete wall building comprising a unitary body having a pair of spaced apart opposing longitudinal walls (12, 13), a pair of spaced apart opposing transverse walls (14, 15) integral at the opposing ends of said opposing longitudinal walls (12, 13), a criss-crossing reinforcing members (16) integrally confined within said pair of opposing longitudinal walls (12, 13) and opposing transverse walls (14, 15), and a plurality of parallel grooves (17) provided on said opposing transverse walls (14,15). |
