20 m VERY THICK AND MEDIUM HARD SEAM
large and medium gas field
Large and medium enterprise
large and medium DC motor
large and medium construction machinery
large and medium coach and bus
large and medium aluminum alloy forings
large and medium - scale industry
Larg and medium—sized precision analytical instrument
inhomogeneous and non-lossy medium
informationization applications for medium and small-scaled store
increment pressure and medium cooling
hot rolling of medium and thick plates