Ma industries provides 4 way junction boxes in gi sheet construction assembled with rivets/ fasteners for long life. The boxes can provide height alteration by replacing corner members. The company supplies these junction boxes are available with salient features like pull box extension to locate under partitions/ tables; gi/ ss 304 covers; knock out on corner of junction box/ cover; hinged cover; shallow folded covers to fit carpet/ tile within; ms, crca alternate materials and either enamel or powder coated alternative finish. The company also supplies other products including metal wire ducts and accessories combining aesthetics with safe and secure wiring. The company also manufactures electrical floor ducts, raceways, wire ways, mounting brackets, accessories for ducts and clamps for securing cables. The unused openings can be blanked with end caps.