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SHENZHEN HONGZHIFA MACHINERY AND ELECTRONICS CO.,LTD

Professional engaged in BYJ Stepping motor, PM Stepping motor, Vibrating motor, Acoustic motor, Gear motor R & D, production and sales as one of the national high-tech enterprises

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SHENZHEN HONGZHIFA MACHINERY AND ELECTRONICS CO.,LTD

Contacts：Li Tian

Contact Information：13427991068

Telephone：0755-81459955

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SHENZHEN HONGZHIFA MACHINERY AND ELECTRONICS CO.,LTD

為什么風力發電機都是白色的？你知道《中國地質論》作者是誰么？