T21-DF8D-00-X/EAC-8A-00-2-CB 美国SOR流量开关 ·电子流量控制器 ·广泛使用在电厂和OEM厂家 ·可测量的大流量为900系列可测大值的两倍 T21-DF8D-00-X/EAC-8A-00-2-CB T21-DF60-00-PP T21-DF6D-CS-RR T21-DF60-00-RR T21-DF8D-00-X T21-DF6D-CS-RR/EAC-8A-CS-4