[ Non-metal building materials, namely, geosynthetic and geotextile mats, nets and fabric for reinforcement, stabilization and drainage of soil and treatment of contaminated sediments, non-metal pipe fittings, non-metal piles, reinforcing mesh made of textile fibres for construction purposes, non-metallic grids, non-metallic tree grids, non-metallic stabilization fabrics for use in construction, non-metallic woven covers for use as geotextile materials, ] geotextiles for the purposes of [ dra...

computer program for solving partial differential equations and instruction manuals sold as a unit