... soft poorly compacted shales ,sandstone, clays, salts and soft li mestones. Size and IADC available: 3 3/4" to 26" IADC 415,435,445,417 ... /8”),349.2(13 3/4”)374.6(14 3/4”)381(15”),393.7(15 1/2”),406.4(16”)444.5(17 1/2”),508(20 ... Is Our Purpose! We would like to establish business relations with you !!!PLs add this formation in your inquiry.1) the ...