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60Si2Mn |
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1m,1.2m,1.5m,2m,etc.Customized |
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Quality assurance, high-quality and affordable |
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Paper carbon + wood pallet according to customer's required |
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1. Oil exploration and extraction |
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2. Geological exploration |
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3. Underground construction |
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4. Scientific research |
ป้ายกำกับยอดนิยม: b19 drill pipe, China b19 drill pipe manufacturers, factory



