Building -construction template subassembly

The utility model discloses a building -construction template subassembly relates to construction technical field, and its technical scheme main points are including the reference block of setting onthe floor, and the reference block includes the metal sheet and surveys buret, surveys buret's the terminal surface and the bottom surface parallel and level of metal sheet, surveys upward fixedly connected with seal ring of buret. The utility model provides a current outer wall of placing the survey buret on the roof comparatively smooth on general, when the concrete setting, because the temperature around the survey buret is different with the concrete and survey buret surfac ratio is more smooth, make the concrete inseparable inadequately when being connected with survey buret, certain gapappears very easily, when overcast and rainy, the rainwater can flow in this gap along the outer wall of surveying buret, and then in the inflow floor, make the structure in the floor receive soakingof rainwater, may cause the