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petroleum asphalt /Sulfonated Asphalt for Petroleum Additives/petroleum drilling Natural Asphalt Gilsonite Bituminous
US $400-1000 / Metric Ton
100 Metric Tons (Min. Order)
Used tricone bit for sale ,used tricone drill bit , TC Used Tricone Bits, TC Used Tricone Bits,TC Used Tricone Bits
US $0-1 / Metric Ton
2 Forty-Foot Container (Min. Order)
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