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.
A polyvinyl chloride (PVC) pipe is made from a plastic and vinyl combination material. The pipes are durable, hard to damage, and long lasting. A PVC pipe does not rust, rot, or wear over time.For that reason, PVC piping is most commonly used in water systems, underground wiring, and sewer lines.ue to the ability of PVC pipe to withstand extreme movement and bending, it is also increasingly used in earthquake prone areas. PVC pipe can withstand the rigorous shaking of the earth without experiencing any damage.
PVC stands for Polyvinyl Chloride. What is interesting is that the Chloride makes up more than half the finished weight of PVC which is what makes the final window resistant to fire.The modern starting materials for the manufacture of PVC are oil and salt. Both of these are products of nature.hat is interesting is that the Chloride makes up more than half the finished weight of PVC which is what makes the final window resistant to fire. The modern starting materials for the manufacture of PVC are oil and salt. Both of these are products of nature.