电动密闭定风量阀/HF-E-900，HF-E-500

定风量阀生产厂家 方形/圆形 机械式

MK09P/MK12P/MK15P/MK20P智能风量调节模块

MK35S/MK40S/MK45S/MK50S风口式恒风量阀

MK15S/MK20S/MK25S/MK30S风口式恒风量阀

MK03S/MK06S/MK09S/MK12S风口式恒风量阀

定风量调节阀/定风量阀/恒风量调节阀/恒风量阀/变风量调节阀

手动密闭阀/电动密闭阀/拉链蝶阀/保温密闭阀/密闭调节阀