... E,K,L for the junks washover. 2. Type C,F,H,G for mending the top fish ... O.D. 3. Type B,D,I,J,F,G,M,N for hard stratum ... the fallen fish. By its use type it can be divided into:1. Type A,E,K,L for the ... for mending the top fish O.D.3. Type B,D,I,J,F,G,M,N for hard stratum ... washover or stabilizers washover.Main Models:TypeO.D.(mm)I.D.(mm)Length(mm)Min.hole(mm)Max.washover ...