Shandong Dongda Electromechanical Co., Ltd
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sales@dongdamachinery.com
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Welcome to Shandong Dongda electromechanical Co., Ltd. we will provide you with high quality products and perfect service.
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SWM pneumatic pressure-free damper
Shockproof valve
Waterproof and closed door
1.8 MMB MMB1.6 *
2.0 MMB MMB2.1 *
SWM manual air damper
SWM automatic non - pressure damper
FM underground explosive storehouse shock-resistant closed door
BMB series emergency rooms are closed
Damper mechanical latching device
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