Solid frame is inserted in warning area, one kind is inserted by the mount in warning thing string warning area. Curve an openning shape side frame with the hairspring steel wire. 1 2 duan ping puts. 2 perpendicular curved to 3 afterwards, the perpendicular reclination of minor arc to 4 points, 2 3 is the section than 3 4 A head wire diameter, and the two becomes sharp contained angle. To 4 flat curving with 1 in back 2 duan binghang, in addition isometric 4 5 the section. Curvedly to 6 points to 5 backs are perpendicular, curve and 4 flat 5 is duan pinghang than 4 5 the short 2mm's of section 6 7 the section. Curve 7 under 7 backs are perpendicular 8 the section. Go up turn to 9 points perpendicularly, 8 to 8 back minor arcs 9 is the section than 7 8 A head wire diameter, and the two becomes sharp contained angle. To 9 flat curving with 6 in back 7 duan binghang, in addition isometric 9 10 the section. 3 4 is the head 5 6 34, 7 of section 8 is the head 5 6 13 of section. Being convenient for hang the area and can not deviating from again, fast cloth is removed soon. Be used for cabinet row face to lay the warning area.