polyacrylamide of the three stages of well-drilling |
pana PAAS |
well-drillingPAC144 |
|
well-drilling coater FA367 |
cation PDMDAAC |
alteration of micro-flow direction S-2000-A |
|
acid gelating agent SY1-9 |
water absorbing resin |
expansibility prevention of clay S-2001 |
|
acid gelating agent SY1-9-C |
distill-suoporting materials |
polyacrylamide NSG |
|
well-drillingPAC141 |
waste water purifi- cation matericals |
cation FDAM |
|
well-drillingPAC143 |
potassium polycalcium of well-drilling |
cation monomer DMDAAC |
|
alteration of micro-flow direction S-2000 |
acid obstruction-down materials SY1-8 |
hydroxy propyltrim- onium chlorride |
|
alteration of micro-flow direction S-2000-B |
acid gelating agent SY1-9-B |
strengthen materials |
|
polyacrylamide ASG |
well-drilling 80A51 |
disperse materials |
|
amphiprotic polyacrylamide FDAN |
well-drillingPAC142 |
|
