... /layer(4) Standard specification:Beam and layer length: 1200mm ,1500mm,1800mm,2000mm,2500mmBeam and layer width:450mm,500mm,600mm,700mm,800mm,900mm ... width:450mm,500mm,600mm,700mm,800mm,900mm,1000mmSide height: 1500mm,1800mm,2000mm,2500mm,2800mm,3000mm