JOY mining company is a global company, manufacturing and selling different kind of advanced mining machines and the relevant equipments.

美国久益采矿公司是一家全球性公司，生产销售各种先进的采煤设备及配套设备。

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Bluetooth being a new kind of short distance wireless communication technical standard, has caused wild attention of global manufacturing companies in industrial community and research institutions.

蓝牙作为一种新的短距离无线通信技术标准，正受到世界工业界生产厂家和研究机构的广泛关注。

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