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 lamp hand held type permanent magnet,tool kit for servicing and maintenance of flame safety lamp,flame proof lamp fitting for dark room of gas testing,drill rod and drill bit,air leg,lubricator,exploder dgms approved twenty five shot capacity 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,