Specification |
After-sales Service: 3 Year;
Warranty: 1 Year;
Standard: AISI, ASME, BS, ANSI, JIS, GB, ASTM, DIN;
Surface Treatment: Polishing;
Manufacturing Process: Casting;
Material: Alloy Steel;
Foundry Technology: Sand Casting;
Lead Time: 20-50days;
Quality Testing 1: Dimensional Checkout;
Quality Testing 2: Hardness Inspection;
Quality Testing 3: Metallographic Test;
Quality Testing 4: Chemical Composition Analysis;
Trade Mark: Customized;
Quality Testing 5: Dry Check;
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Warranty: 180hours;
Standard: API;
Surface Treatment: Spray-Paint;
Manufacturing Process: Forging;
Material: Alloy Steel;
Bit Size: 8 1/2"(215.9mm);
Thread: 4 1/2"Reg;
Bearing Type: Journal Bearing;
Sealed Material: Rubber/Metal;
Formatiom: Soft to Hard Rock;
Color: Blue,Golden;
Advantage: High Performance;
Service: The Best Service;
Market: Europe,America,Africa,Middle East;
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Surface Treatment: Spray-Paint;
Manufacturing Process: Casting;
Material: Cast Steel;
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Surface Treatment: Sand Blast;
Manufacturing Process: Casting;
Material: Aluminium Alloy;
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Standard: API;
Surface Treatment: Spray-Paint;
Manufacturing Process: Forging;
Material: Carbon Steel;
Bit Size: 9 7/8"(250.8mm);
Connected Thread: 6 5/8''reg;
Bearing Type: Journal Bearing;
Sealed Material: Rubber Sealed& Metal Sealed;
for Formation: Medium to Hard Rock Formation;
Work Time: About 100 Hours;
Advantage: High Performance;
Service: The Best Service;
Color: Golden;
Market: Europe,America,Africa,Middle East;
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