3×90°-edge weld-vacuum box For testing the inner 3×90° edge seams. Edge length 3 x approx. 270 mm, with manometer
3×90°-edge weld-vacuum box For testing the inner 3×90° edge seams. Edge length 3 x approx. 270 mm, with manometer
3×90°-edge weld-vacuum box For testing the inner 3×90° edge seams. Edge length 3 x approx. 270 mm, with manometer