• LongTai Electrical Mechanical Equipment CO., Ltd

    additive drilling fracturing fluid viscosifier thickener oilfield chemicals natural plant gum polymer glucomannan modification crosslinking agent bactericide shale control Product Five:CO2 gas shielded welding wire ER50-6 16.mm submerged-arc H08A, ER05-6 Submerged Arc Welding Wires ...

    Telephone:86-15222886846Address:hebei, Tianjin, Tianjin, China

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