จำหน่ายท่อ PVC ขนาดต่างๆ ท่อ PVC ขนาด 1/2" (8.5),(13.5) 3/4" (8.5),(13.5) 1" (8.5),(13.5) 1 1/4" (8.5),(13.5) 1 1/2" (8.5),(13.5) 2" (8.5),(13.5) 2 1/2" (8.5),(13.5) 3" (8.5),(13.5) 4" (8.5),(13.5) 6" (5),(8.5) 8" (5),(8.5) 10" (5),(8.5)