Maximum continuous flow based on pipe line velocity of 20 ft. per second.
Maximum continuous flow based on pipe line velocity of 20 ft. per second.
最大持续流量以管路流速每秒20英尺为计算基础。
Maximum continuous flow based on pipe line velocity of 20 ft. per second.
最大持续流量以管路流速每秒20英尺为计算基础。