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No. 128, Changling South Road, Guanshanhu District,Guiyang,Guizhou,China China
IADC CODE IDENTIFICATION: .First Digit: 1, 2, 3 and 4 are further breakdown of formation with 1 being the softest and 4 the hardest. .Third D
Bit Sizes: 6 to 17 1/2 Number of Blades: 3, 4, 5, 6, 7, 8 Connection thread: 2 7/8", 3 1/2", 4 1/2", 6 5/8" API Pin Features: Double r
Contact Person Peter Chan
Address No. 128, Changling South Road, Guanshanhu District, Guiyang, Guizhou
We will contact you soon .
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