List of active volcanoes in the Philippines. 1  Mayon in Albay is the most active volcano in the Philippines. 2  Taal in Batangas. 3  Kanlaon in Negros island. 4  Bulusan in Sorsogon. 5  Smith in Calayan. 6  HibokâHibok in Camiguin. 7  Pinatubo in Zambales. 8  Musuan in Bukidnon.
Diffen âº Home Improvement. Regular PVC (polyvinyl chloride) is a common, strong but lightweight plastic used in construction. It is made softer and more flexible by the addition of plasticizers. If no plasticizers are added, it is known as uPVC (unplasticized polyvinyl chloride), rigid PVC, or vinyl siding in the U.S.iffen âº Home Improvement. Regular PVC (polyvinyl chloride) is a common, strong but lightweight plastic used in construction. It is made softer and more flexible by the addition of plasticizers. If no plasticizers are added, it is known as uPVC (unplasticized polyvinyl chloride), rigid PVC, or vinyl siding in the U.S.
The color of PVC pipe is traditionally white or dark gray, with a technical description of the pipe printed on the side. PVC is available in both rigid form (commonly used in construction and piping applications) and flexible form (found in electrical cable insulation).1 It is safe to touch and handle, and does not leach chemicals when used as the manufacturer intended.