adjusted inclined mining
Gently inclined thin vein
gently inclined thin small orebodies
gently inclined thin layer weakness structure
Gently Inclined Thick Orebody
Gently inclined thick and medium orebody
gently inclined open-mine
Gently inclined medium thick orebody
Gently inclined extremely-thin orebody
gently inclined and very thin ore vein
gently inclined and thin ore vein
Gently inclined and medium thick orebody
Gently inclined and extremely thin iron mine