车间壁式边墙排风机SEF-650D4，防爆型边墙风机SEF-650EX
附件选配：重力式止回风阀（可确保车间在风机不开时保持与室外隔绝），订货时注明。车间壁式边墙排风机SEF-650D4，防爆型边墙风机SEF-650EX
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车间壁式边墙排风机SEF-650D4，防爆型边墙风机SEF-650EX风机外形尺寸
产品型号 | A | L1 | L2 | B | | 产品型号 | 侧墙开洞尺寸mm （正方形） | WEXD-250D4/E4 | 320 | 200 | 295 | 290 | | WEXD-250D4/E4 | 340×340 | WEXD-300D4/E4 | 370 | 200 | 325 | 340 | | WEXD-300D4/E4 | 390×390 | WEXD-350D4/E4 | 420 | 240 | 360 | 390 | | WEXD-350D4/E4 | 440×440 | WEXD-400D4/E4 | 470 | 260 | 400 | 440 | | WEXD-400D4/E4 | 490×490 | WEXD-450D4/E4 | 520 | 260 | 430 | 490 | | WEXD-450D4/E4 | 540×540 | WEXD-500D4/E4 | 570 | 260 | 470 | 540 | | WEXD-500D4/E4 | 590×590 | WEXD-550D4/E4 | 620 | 280 | 495 | 590 | | WEXD-550D4/E4 | 640×640 | WEXD-600D4 | 765 | 400 | 590 | 735 | | WEXD-600D4 | 790×790 | WEXD-650D4 | 810 | 450 | 615 | 780 | | WEXD-650D4 | 835×835 | WEXD-700D6 | 855 | 460 | 635 | 825 | | WEXD-700D6 | 880×880 | WEXD-800D6 | 972 | 500 | 705 | 945 | | WEXD-800D6 | 1000×1000 | WEXD-900D6 | 1075 | 500 | 755 | 1045 | | WEXD-900D6 | 1100×1100 |
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