DWHF-19/6-0-SP,DUAL WALL TUBING, FLAME RETARDAN
DWHF-19/6-0-STK,DUAL WALL TUBING, FLAME RETARDAN
DWHF-24/8-0-SP,DUAL WALL TUBING, FLAME RETARDAN
DWHF-24/8-0-STK,DUAL WALL TUBING, FLAME RETARDAN
DWHF-3/1-0-SP,DUAL WALL TUBING, FLAME RETARDAN
DWHF-3/1-0-STK,DUAL WALL TUBING, FLAME RETARDAN
DWHF-4.5/1.5-0-SP,DUAL WALL TUBING, FLAME RETARDAN