PURPOSE: To facilitate the discrimination between model numbers, sizes, owners and the like, of waist pipes and improve the durability of a waist pipe, and simplify maintenance work by fixing windingly at the outer peripheries of film bodies administered with coloring for indication.

CONSTITUTION: Concrete placement formworks 9 to form the floor surfaces 8, 8 or the like of a building 7 are supported on the upper end sides of insertion pipes 2, 2 by extending out the insertion pipes 2, 2 on the upper end sides of waist pipes 1, 1 to be standingly provided. In the case of these temporal provision support materials, each film body 11 administered with coloring to indicate a type size and/or an owner or the like is fixed windingly around the outer periphery of each waist pipe 1. As a result, the discrimination of the waist pipe 1 type size, owner or the like becomes easy, and at the same time the rust and damage of the waist pipe 1 can be reduced, and also concrete to be stuck on the surface of the waist pipe 1 can be easily removed by peeling off the film body 11.