Mô tả
top quality, minimum pressure loss, for horizontal and
vertical installations, stable operation when partly open
(horizontal), downward flow (special spring), 2 hinge
pins, 4 springs to close, disc plates with individually
suspended stop lugs, swing stop for stable opening
position, angle when fully open: 80°, coated or with
with closing damper
Đánh giá
Chưa có đánh giá nào.