Instrructions for further erection activities 01 安 ...? civil work 土建工作 --base frame of p-1301a/b to be fully grouted. ..... 充分灌浆 --floor openings have to be covered with checker plate or equipped with railings. 地板开孔处必须用网纹板盖上或装上拦杆。 --platforms to be equipped with railings. 平台要装有栏杆。查看更多