Construction materials in Class 19 including prefabricated construction elements, blocks, bricks, stonewalls, cements, grouts, and pises; pipes, ducting, gutters and channels, all being non-metallic goods in Class 19; artificial stones; refractory products of all kinds in this class, refractory materials in the form of powders, grains, bricks, blocks and slabs; and all other Class 19 goods

Furnaces in this class including glass making and metal making furnaces, prefabricated furnace elements in this class, spare parts in this class for furnaces, refractory linings in this class for furnaces, refractory products of all kinds in this class; and all other class 11 goods

Engineering services in this class, technical studies and research, materials testing, studies of technical projects, controlling of material reliability, and drawing and drafting services in this class