... the soft and hard disks can be freezed up in the screen with words and printed or ... be used for online, offline, in service or off service testing in auto, petrochemical, metallurgy and machine ... the equipment can satisfies multi- product line or one-off testing demand of multi-testing surfaces of unitary ... the same with testing of welding steel beld, reel off oily pole, valve pole, pin, gear, hubcap, ...