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The company mainly produces Level meters, flow meters, control valves and other industrial automation process control products; products are widely used in petroleum, chemical, power, food and other industries .
  Shanghai HaoJia company mainly produces cellulose acetate, high strength and high modulus polyethylene fiber (UHMWPE), aluminum (manifold, tank high-frequency control) that this product is widely used in automotive, marine, industry and other special glasses industry.
    Lianda Lipu Optical Co., Ltd., high-tech enterprise in Zhejiang Province, from 2008 focused on LED lighting product development, design, manufacture and sales of integrated business, serving environmental protection, energy saving social requirements.
       Industrial Co., Ltd. located in Shanghai, Shanghai Haojiate Jinshan Industrial Zone, covers an area of ​​70 acres, the registered capital of 10 million people without a total investment of 150 million free, is a focus on various aluminum high frequency welded pipe R & D and manufacture of scientific and technological enterprises .
       The company is engaged in chemical products, instrumentation, control valves, complete control of import and export trade.
Ruida Group Co., Ltd.   Ruida Group Co., Ltd.(Formerly known as Zhejiang Lianda Instrument Co., Ltd.)Founded in 1980, the period of June 2009 was promoted to the approval of SAIC, "Rui large group Co., Ltd.".
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