bids are invited for boq2026 pcb fabrication lab , pcb prototyping machine , safety devices on haulage road , shot hole pattern in a sinking shaft , plumbing or shaft centring arrangements for a sinking shaft , shot hole patterns , types of roof support by timber , chock with four corner props , chock release device , tapered props , side and roof support in a roadway , roof bolting , magnetic unlocker for flame safety l hand held type permanent magnet , tool kit for servicing and maintenance of flame safety l , flame proof l fitting for dark room of gas testing , drill rod and drill bit , air leg , lubricator , exploder dgms approved twenty five shot capacity max resistance one hunderd fifty nine ohms, one and half a firing current, non volt battery, dc output five hunderd volt , scraper cum brake detector , stemming rod , metric chain size twenty meter , metric chain size thirty meter , engineering chain , revenue chain , gunter chain , steel tape fifteen meter , steel tape thirty meter , metallic tape, total quantity : 30