ข้อต่อตรงลด PVC หนา สีฟ้า ท่อน้ำไทย มาตรฐาน มอก.

20x18mm (3/4"x1/2") 25x18mm (1"x1/2") 25x20mm (1"x3/4") 35x20mm (1 1/4"x3/4") 35x25mm (1 1/4"x1") 40x18mm (1 1/2"x1/2") 40x20mm (1 1/2"x3/4") 40x25mm (1 1/2"x1") 40x35mm (1 1/2"x1 1/4") 55x18mm (2"x1/2") 55x20mm (2"x3/4") 55x25mm (2"x1") 55x35mm (2"x1 1/4") 55x40mm (2"x1 1/2") 65x20mm (2 1/2"x3/4") 65x25mm (2 1/2"x1") 65x40mm (2 1/2"x1 1/2") 65x55mm (2 1/2"x2") 80x25mm (3"x1") 80x35mm (3"x1 1/4") 80x40mm (3"x1 1/2") 80x55mm (3"x2") 80x65mm (3"x2 1/2") 100x40mm (4"x1 1/2") 100x55mm (4"x2") 100x65mm (4"x2 1/2") 100x80mm (4"x3")