To produce, manufacture. treat process, prepare, refine, import, export, purchase, sell and generally to deal in either as principals or as agents elther solely or in partnership with others, all types and kinds of cement ordinary, white coloured, Portland, pozzolana, alumina blast furnace, sillca and all other varietes of cement, lime and limestone, clinker and/ or by-product thereof, as also cement products of any Or all descriptions, such as pipes, poles, slabs, asbestos sheets, blocks, tiles, garden wares, plaster of paris, lime pipes. building materials and otherwise, and articles, things, compounds and preparations connected with the aforesaid products, and in connection therewith to take on lease or otherwise acquire, erect, construct, establish, work, operate and maintain factories , quarries, mines and workshop. To camry on the business of manufacturers and dealers in cement products, lime, plasters, whiting clay, gravel, sand, concrete, mortar, minerals earth coke fuel artificial stone and builders requisites and conveniences of all kinds and to produce manufacture, purchase, refine cement, Portland cement, alumina cement plaster of paris, lime and lime stone prepare. process, lmport export, sell and generally deal in marble granite, kankar and by products thereof and in connection therewith to acquire erect, construct establish, operate and maintain Or cement factories workshops and other works.