Answer: The compressor uses water instead of oil to lubricate the screw elements, eliminating the risk of oil contamination in the compressed air.
A. Inspect reinforced gas piping B. Replace the leaking valve C. Check or replace air valve D. These are all answers: D. all of the above are
A. Poor after-sales service B. The after-sales service network is underdeveloped C. Provide comprehensive after-sales service D. After-sales service is limited to large cities Answer: C. Provide comprehensive after-sales service
A. 1873 B. 1871 C. 1965 D. Answer in 2017: A. in 1873
A. 1 bar, 20℃, 0% humidity B. 1 atm, 25℃, 50% humidity C. 1.5 bar, 30℃, 30% humidity D. 1.2 bar, 15℃,…
A. Brand and model B. Color and appearance C. Production date D. Answer to transportation method: A. make and model