electrical and scientific apparatus, namely, computer controlled electrical firing boxes and control panels for use in routing an electric signal that causes the remote firing of pyrotechnic components of a display fireworks show

non-metal seals for terminating mineral insulated electrical wire and cable

chemical products for commercial and scientific purposes, siliceous powder and granulate, especially for use as a filler, additive, as an auxiliary flow agent, as a pigment, as a basic material for the manufacture of quartz glass products, and as a carrier and packing material in catalysis; pressed products of quartz glass powder or quartz glass granulate, especially for use as a basic material for the manufacture of quartz glass products and as a carrier and packing material in catalysis; qu...