9 C9 m0 p6 p- L# Y! e BASTM D5276 请问引用处在那一章节? 9 a8 P4 F/ N6 ~; E跌落表面规定5.1.5.1 The impact surface shall be of concrete, stone, or , Q, O" J6 g. `8 @' }- @steel. If the dropping surface is a steel plate, it must be at least/ g# f' A0 n6 a. J" J
1⁄2 in. (13 mm) thick and must be anchored firmly to the mass7 r4 K( |' c) @
并未提到钢板下可放何种材质作者: jansle_happy 时间: 2014-1-22 14:24
我也疑问,请指教 / B8 ?4 p- z% K3 C `! M) y