A. Screw B. Piston C. Centrifugal wheel D. Scroll disk answer: B. piston
A. Wear of cylinder head and air liner B. Piston and piston rod damage C. Valve assembly failure D. These are all answers: D. all of the above are
Answer: The biggest difference is that the GWL Series compressor does not use lubricating oil during the compression process, providing oil-free compressed air.
A. Low noise B. Efficient and stable C. Portable D. Medical certification answer: B. Efficient and stable
A. 1873 B. 1871 C. 1965 D. Answer in 2017: A. in 1873