Especially it is applicable to all kinds of pipeline hitch and oil and water pipeline hitch of heavy-medium caliber among the paste pot of purification system in the operation of drilling for oil.
尤其适用于石油钻井作业中净化系统各泥浆罐之间的各种管线联接和大中口径的油、水管路联接。
We now in air purification system acquires in the sweet in the lobby, public, essential oil, wherein aromatherapy lamp oil, regional for our guests build relaxed and comfortable holiday wind.
现今我们在空气净化系统里添置了芬芳精油，在大堂等公共区域摆置香薰灯油，为广大宾客营造轻松舒适的度假风。
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