mud pump washpipe&packing set 1.made by 35 Cr Mo forging steel 2 ... excellent performance4.most competitive price mud pump washpipe and packing set: Over a 1000,000 of interchangebale mud pump parts ... ,FA-1600,FB-1300,FB-1600,F-350,F-500,F-650,F-800,F-1000,DB-550;D- ... 300,D-375,D-700.IDECO:T-500,T-800,T-1000,T-1300,T-1600.GARNDER- ... -80,7-P-50,K-700,K-700A,K-500,K-500A,K-380,A1700-PT,A1400-PT,A1100- ...