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 ... services:Machining, Turning, Milling, Stamping, Casting5) Application:Automation machine, medical device, industrial machine, automobile, electric appliance, and other industries.6) Drawing ...