1, oxygen cylinder valve 2, ISO Certificated 3, Tolerance:0.005~0. ... :0.5~1020mm 5, Delivery:on time China OEM customized oxygen cylinder valve About usYaopeng was founded in 2005 as a ... equipments:CNC machining center, CNC lathe, grinding machine, automatic lathe machine, conventional lathe machine, milling machine, drilling machine, EDM etc4) Our services:Machining, Turning, Milling ...