The horizontal slot, Ordinarily the mortar bed, could be Lower using a twin diamond blade chaser with vacuum attachment, an angle grinder or even a mortar chisel. Enamelled copper wire (copyright) has an enamel coating applied to it that makes it a lot more proof against corrosion. Some sorts of https://gogogobookmarks.com/story18171390/detailed-notes-on-crack-stitching-bars