EN 13055-1-2002 轻集料.第1部分:混凝土、灰浆和水泥浆用轻集料.
EN 13055-1-2002 Lightweight aggregates-Part 1:lightweiht aggregates for concrete, mortar and grout.
EN13055-1:2002/AC:2004 轻集料.第1部分:混凝土、灰浆和水泥浆用轻集料.
EN13055-1:2002/AC:2004 Lightweight aggregates-Part 1:lightweiht aggregates for concrete, mortar and grout.