gypsum board production line
gypsum powder equipment
drywall production line
gypsum powder production line
gypsum board equipment
plaster of paris line
API 2 3/8'' drill pipe ;E75 grade (60mm)
5'' drill pipe*9.19mm*IEU*E75 grade*NC50 ; API standard
3.5'' drill pipe, 6 meters length ( grade E75)