RECYCLED FORM BOARD FOR CONCRETE CASTING
Document Type and Number:
Japanese Patent JP05005359
PURPOSE: To make a recycled form board for concrete casting simply at low costs.
CONSTITUTION: Holes 2 bored to a used form board for concrete casting are closed with plugs 3 that are made in the diameter approximately the same as the inner diameter of the hole and in the height approximately the same as the thickness of the form board, and the closing is made by pressure.
January 14, 1993
March 27, 1991
B27D1/00; E04G9/04; E04G19/00; B27D1/00; E04G9/02; E04G19/00; (IPC1-7): B27D1/00; E04G9/04; E04G19/00