Chinese standard geological , water well drilling casing pipe tubes

SW-CasingAdvancerDriver
R-C
PW-Casing-5ft

we can supply many kinds of chinese standard geological, water well drilling casing pipe tubes, which are connected with casing coupling for both casing tube box threads. 

 

Standard Size OD x W I.D. Material Remark
GB/T16950-1997 73 Ø73x4.5 Ø64 DZ50 Legnth and thread depends on customer's demands
89 Ø89x4.5 Ø80 DZ50
108 Ø108x4.5 Ø99 DZ50
127 Ø127x4.5 Ø116 DZ50
146 Ø146x5 Ø136 DZ50
168 Ø168x6.5 Ø155 DZ50
Notes:
Casing length: generally supplied with length 3.0m, 1.5m, 1.0m, 0.75m.
Any sepcial length is available by requests.