We can also supply many kinds of air source treatments, Such as AL lubricator machine, AW filter-regulator, AW automized drain machine, QIU air filter, QIY pressure reduction valve, AR pressure reduction, AFR filter regulator valve. Besides all of these clients can choise B series as their requirments. B series are BC, BF, BR, BFR, etc. Same as A series air source treatment. More information please check by our website.