cc523pate 发表于 2017-12-26 21:49:05

BS EN 13077-2008 Devices to prevent pollution by backflow of potable water - Air

BS EN 13077-2008 Devices to prevent pollution by backflow of potable water - Air gap with non-circular overflow (unrestricted) - Family A - Type B


admin 发表于 2017-12-27 17:15:49


谢谢您的分享，金币已奖励!
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