1. Cold and hot water systems in buildings, under and above ground 2. Heating systems in buildings, including floor, wall panels, and radiant heating systems; 3. A pure water supply system that is drinkable 4. Central air-conditioning system 5. Conveying or discharging chemical media and other industrial piping systems.1- Potable water For cold and warm water installations 2- For rainwater utilization systems 3- For compressed air plants 4- For swimming pool facilities 5- For solar plants 6- For agriculture and horticulture 7- Heating pipes for residential housing 8-For industry. 1- Healthy, bacteriological neutral, conforming to drinking water standards 2- Resistant to high temperatures, good impact strength 3- Convenient and reliable installation, low construction expenses 4- Excellent heat-insulation property from minimum thermal conductivity 5- Lightweight, convenient to transport and handle, good for labor-saving 6- Smooth inner walls reduce pressure loss and increase flow speed 7- Sound insulation (reduced by 40% compared to galvanized steel pipes) 8- Light colors and excellent design ensure suitability for both exposed and hidden installation 9- Recyclable, environment-friendly, accords with GBM standards 10- Extremely long usage life for at least 50 years.