Changsha Drilling Machinery CO., LTD

Contact Us

Name: Perry Tan
Tel: 0086-731-84077805
Fax: 0086-731-84072772
E-mail: csdrillingtools@vip.126.com
E-mail: info@csdrillingtools.com
Add: 5# Panpan road, economic development zone, Changsha, Hunan, China. Zip 410100
Skype: csdrillingtools
QQ: 2522716948
Skype: csdrillingtools QQ: 2522716948 csdrillingtools@vip.126.com info@csdrillingtools.com

Link
Rock Museum
Rock Hardness Grade
 
 
 

clay
 
clay
 
clay
  
sandstone
 sandstone
sandstone

Gypsum

 Gypsum
Gypsum
 Talc
 Talc
 Talc

tuff
tuff
tuff
 shale
 shale
 shale

serpentinite
serpentinite
serpentinite
 Calcite
 Calcite
 Calcite

 
siltstone
siltstone
siltstone
 Limestone
Limestone  
 Limestone

 
 marble
 marble
 marble
 andesite
 andesite
 andesite
 
 
dolomite
dolomite
dolomite
 porphyry
 porphyry
 porphyry



basalt
basalt
basalt
 Pegmatite
 Pegmatite
 Pegmatite

gabbro
gabbro
gabbro
 schist
 schist
 schist

 norite
 norite
 norite
 Syenite
 Syenite
 Syenite