... .45,0.65,1,3,5,10,20,30,60 µm Length: 4",5",10",20",30",40" Diameter: 69.0 ... always grow up keep comprehensive and high speed,improve the management system of quality strictly and actively,pay attention to train the ... "achieving the world brand,being a historic enterprise", and the management concept of "honesty,excellence,challenge" and also the service concept ...