uPVC (Unplasticized Polyvinyl Chloride) or Rigid PVC (Rigid PVC) products are currently popular. used in construction Because it has many outstanding properties, such as being resistant to weather conditions, humidity, not rusting, not fire retardant, and does not require much maintenance, etc. Electrical conduit pipes and telephone wire (white) of JIS C 8430 standard. It has good electrical insulation properties, can withstand voltage, ensuring safety in installation. It is also durable to various environmental conditions. And when a fire occurs, it will Does not spread fire ensuring safety