Warning: file_put_contents(/www/wwwroot/zidian/biehu.cn/cache/a56d35bef078642f837fe35a0d9af69b.txt): failed to open stream: No space left on device in /www/wwwroot/zidian/biehu.cn/index.php on line 58 fixed ball-valve例句_fixed ball-valve英汉例句_fixed ball-valve双解例句_甲百匯小鸡词典
The installation 1, Qudiao flange end of the Flange-connection fixed ball valve protective cover on both sides, in the valve fully open state to wash clean. 安裝1、取掉法蘭耑兩邊的保護蓋，在閥完全打開的狀態下進行沖洗清潔。