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    WELCOME TO ZHEJIANG GUANYU STEEL TUBE CO.,LTD WEBSITE!
    LOCATION: HOME > About Us
    CONTACT US
    TEl:
    +86-578-8015555
    FAX:
    +86-578-8911588
    CELL:
    +86-15961185386(Whatsapp)
    E-Mail:
    [email protected]
    About Us

    Guanyu Tube has been serving the Wrold since 2003.


    ISO9001:2015, PED 2014/68/EU certified. Zhejiang Guanyu Steel Tube Co., Ltd is specialized manufacturer of High Quality Stainless Steel Tubes & Pipe, Nickel Alloy Tubing & Pipe in China. Production area covers an area of 35,000 square meters.  Annual output more than 10,000 tons.


    We have built a complete quality management system and organization according to ISO 9001:2015 and PED 2014/68/EU. Quality control begin with an audit trail and continues from the point of steel melting. for the raw materials, we select the best quality raw material for our customers. right through to the finished product. This level of attention to detail extends throughout the design and manufacturing chain, all kinds inspection will be all though the producing process ensure the Stainless-Steel Pipe Tubing and Nickel Alloy Seamless Pipe, Copper Nickel Alloy Tubes, Brass Seamless Tubes finished in qualified. With destructive and non-destructive tests according to standard specification and customer’s special requirement, and including verification of performance by independent third-party test houses.

    Our Principles

    Save every Cost for our customers!

    Fully support our customers and grow with them!

    Select the best quality raw materials for our customers and bring them longer-term profits


    Thanks to all of our clients, your trust drives us to overcome millions of difficulties and achieve today’s success!


    Environment and Safety

    Guanyu Steel Tube is ISO 14001 and OHSAS18001 Certified. We systematically seek to reduce the environmental impact of our business as well as the safety risks that our employees are exposed to. In particular with relation to the new conception of plants and the improvement of processes, we drive forward this optimisation process in terms of environmental impact and health and safety.

    We already export our tubes to North America, South America, South Korea, Inida, South East Aisa, West Aisa, Europe, Australia.


    Thanks to all of our clients, your trust drives us to overcome millions of difficulties and achieve today’s success!


    Main Raw Material Supplier:

    Yonxing Special Material  / BAOSTEEL / POSCO / Sandvik / Outokumpu / Nippon Steel & Sumitomo Metal


    Mainly Producing & Testing Equipment List

    Equipment Name Detailed Description Quantity (sets)
    Cold Rolling Pilger Machine LG0-20-HS LG60-H 12
    Cold Drawing Machine Set OD 3 – 530mm 12
    Solution Annealing Furnace CNG Controled by Computer 25 Meters 1
    Bright Annealing Furnace Nitrogen and Hydrogen 1
    Pickling Tank 25 Meters 25000*1600*1000mm 4
    Electric Resistance Heat Treatment XL-21 1
    Straightening Machine LJ25, LJ110, LJ160 10
    Eddy Current Test Machine ECT-308E 1
    Ultrasonic Test Machine CTB-108 1
    Hydrostatic Test Machine Maximum 25 Meters 1
    Direct Reading Spectrometry M5000F 1
    Portable Spectrometer Hitachi X-MET8000 Smart 2
    Rockwell Hardness Tester HR-150DT 1
    Vickers Hardness Tester 1
    Universal Test Machine WEW-600B 6-600KN 1
    Metallurgical Microscope 4XI-II 1
    Endoscope Test DEPSTECH 1




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