Well improvement services, namely, hydraulic fracturing of subsurface geologic formations to enhance well production

Biocides, germicides, bactericides, virucides, fungicides, insecticides, pesticides and herbicides

Building materials (non-metallic), in particular refractory cast mixtures, not of metal, refractory ceramic materials and refractory lining materials, not of metal, preferably for metallurgical furnaces and furnaces; rigid pipes, not of metal, for building; non-metallic templates [building materials] for making linings and linings of metallurgical vessels; materials, not of metal, for building and construction; asphalt, pitch, tar and bitumen; transportable buildings, not of metal; monuments,...