FLEXIBLE HOSE AND METAL BELLOW EXPANSION JOINT FOR VACUUM : FLANGES, LAPJOINT, FITTING MATERIALS : SUS304, SUS316 FLEXIBLE HOSE CORRUGATED ANNULAR SUS304, SUS321, SUS316 TYPE. FLANGE END FIXED 2 SIDE : DN15 (1/2?) ? DN300 (12?) HYDRAULIC PETROLEUM SUCTION HOSE WITH FLANGES + NIPPLE (ท่อส่งน้ำมันขนาดใหญ่ 4 FLEXIBLE HOSE SUS304 LARGE CORRUGATED ANNULAR WITH BRAIDED MESH LAYER - SINGLE LAYER : DN.125 (5 BELLOW ELEMENTS FOR EXPANSION JIONT 2 PLY ANNULAR MATERIALS : OUTER/SS304, INNER/321