ASAHI SEIKO CO., LTD, was founded in 1938, Cooperated with Nexen, made "Nexen-Asahi" Air Clutch and Brake.

CSMP, CSCP, CDP, DEF, QEF, CMA CMNF, CTHP, CTHS, CSPP

BSM, BSB, BDP,DFE, QEF,BMA, BMN, BSE, DFB, CFB, DFB, QFB, QFBHT, BWC, BCD

BCF, BMK1800, BMK-D, BTC, BCH, BD, SPC, VC500, BMC, BC.