Zwitterionic Strong Shafi Domin hakowa Bewafa FA367 Sulfomethylated phenolic Guduro Qazanta plugging Angent Domin hakowa Bewafa Zafin jiki da kuma gishiri resistant alli hana ruwa guda m asarar reducer for hakowa ruwaye JT888 EP man shafawa Potassium Polyacrylamide for Drilling Fluid KPAM Zwitterionic polymer danko Reducer XY-27 Asalin Rashin Ingancin Polymer na Magunguna Low haske Liquid man shafawa Barite