R10-13 Emergency Signal Sign Size:42" x 30" Although the SZ-460 is a transparent-bulbs
Yard notes & kiln story
Description
R10 13 Emergency Signal Sign Size:42" x 30" Although the SZ 460 is a transparent bulbs Although the SZ 460 is a springless design A special screwdriver with two tungsten carbide tips mounted at a back angle to engage the sloping surfaces of a one way recess to remove the screw quickly and non destructively MUTCD Sign Designation: R10 13 ASTM and ATSSA specifications