Pre-fabricated copper and copper alloy tubes, pipes, and casings for tubes and pipes, for construction and industrial application; semi-finished tubes and pipes made of copper and copper alloys for water supply, gas, refrigerator, ventilating and heating systems

Pre-fabricated copper and copper alloy tubes, pipes, and casings for tubes and pipes, for construction and industrial application; semi-finished tubes and pipes made of copper and copper alloys for water supply, gas, refrigerator, ventilating and heating systems