Min. Order Reference FOB Price
1 Piece US$220.00-400.00 / Piece
Product Description
Product Description 8 1/2 IADC637 Roller Cones for Piling/Drum Basial Specification IADC Code 117,127,126,217 417,437,517,537 617,627,637,737 Bit Size 7 1/2'',8 1/2'' 9 7/8'',12 1/4'' Tooth Type wide teeth,chisel insert Bit Weight 18kg Meterial tungsten carbide ...