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KDONAr-1200/1200/400 air separation was put into use
Published: Mar 22, 2022 clip:
 The kDONar-1200/1200/400 air separation invested by Chunhua Gas was put into use, O2, N2 and Ar2 all reached the design index. Linyi ten million tons of fine steel base to add bricks and tiles.