Magnesium, magnesium alloys; disc-shaped fittings of metal for fracking; pipes and tubes of metal; metal plugs; metal poles; ring-shaped fittings of metal; cable junction sleeves of metal; metal rods; metal sheets; soldering wire and welding wire; metal welding rods and metal brazing rods; metal brazing alloys; magnesium and magnesium alloy frac balls, frac seats, and frac plugs, all for use in fracking

MAGNESIUM BASED PHARMACEUTICAL PREPARATION FOR THE TREATMENT OF MAGNESIUM DEFICIT