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  • Precision Organizational Structures Instrument For Measuring Flatness Granite Straight Edge - China

    price: contact company for price


    Granite Straight Edge purposes: to measure straightness and flatness of the work piece and equipment installation. Flatness, straightness of machine table, guides and precision work. Granite straight edge material JinanQing, granite straight edge is black gloss, structural precision, uniform texture, good stability, high strength, and high hardness. Granite square foot is made of natural stone materials, precision reference measurement tools, instruments, precision tools, machine parts inspection, is an ideal base level, especially for high precision measurements.


    1. High precision reliable stability resistant to deform and guaranteed accuracy under normal ambient temperature.

    2. No- rust and anticorrosion.

    3. Wear resistance long service life.

    4. Any cutting or scraching for working surface does not bring about rough edges which might influence its measuring precision.

    5. Non- magnetization.

    6. Glossy surface without sluggishness when the workpieces or tools are moving on it.

    The physical properties:

    Specific Gravity: 2970- 3070kg/ m3

    Compressive strength: 245- 254N/ m m2

    Water absorption: <0.13%

    Elastic Modulus: 1.27- 1.47N/ m m2

    Shore hardness: >Hs70

    Linear Expansion Coefficient: 4.61 × 10- 6/ °C

    Precision has 00, 0, grade. It is the ideal tool for drawing line and inspection at precision processing company.

    Product Speciality:

    1. Made of high quality Jinan Black Granite

    2. High precision and high stability.

    3. No rust and anticorrosion.

    4. Non magnetization.

    5. Good abrasion resistance.

    Product Application:

    Mainly used as installation and inspection of machine tools, inspect Vertical degree, parallelism and straightness of guides and precision component in modern industry and scientific research institutes.


    According to your detail requirement



    Precision Grade:

    00, 0 grade


    We have strong cooperation with DHL, TNT, UPS, FEDEX, EMS. You also can choose your own shipping forwarders. About the large products, we choose shipping by sea.


    1. L/ C

    2. T/ T

    3. Western Union

    Packaging Methods:

    Wooden case or depend on your requirement


    1. Any inquiries will be replied within 24hours.

    2. Professional manufacture, welcom to visit our factory.

    3. OEM/ ODM available:

    1) Paint logo on the product.

    2) Customized product according your drawings.

    3) Any your idea on product we can help you to design and provide drawings.

    4. High quality, practical designs, reasonable & competitive price, fast lead time.

    Aftersale Service :

    1) All products will have been strictly quality checked in workhouse before packing.

    2) All products will be well packed before shipping.

    3) We can take over the mounting or clamping activities or mounting plan.

    4) We provide the finished project report. Including Contract, Drawings, Quotation Sheet, Proforma Invoice, Technical Description, Manufacturing Progress Control Schedule, Test and Inspection Reports, B/ L, Insurance, Commercial Invoice, Packing List, Certificate of Origin.

    Chenghua Machinery Sale Ltd. Company, Shanghai

    Company Profile:

    Shanghai Chenghua Machinery Co. , Ltd is a large- scale business entities specialized in research, development, production and sales of mechanical equipments, mechanical processing, precision measuring tools( cast iron, granite) and component; also, is the only surface plate manufacturers in Shanghai and East China.

    welcome to visit our company when you are free.

    We can also produce the Granite Straight Edge as your requires or we can provide Technical Support for you. So if there is any thing we can do for you, feel free to contact me. I hope we can do business in the future and make good coorperation with each other.

    Any questions please feel free to contact me.

    Company Contact:

    • Phone: 02161670996

    • Address: Room 2705,Soho.2 Building,No.388 Zhongjiang Road,S, Shanghai, China

    • Email: Email

    Published date: December 17, 2015 -

    • Business Description: Shanghai Chenghua Machinery Co., Ltd. is a large scale business entities

      specialized in research, development, production and sales of mechanical

      equipment, mechanical processing, precision measuring tools (cast iron,

      granite) and component; also, is the only surface plate manufacturers in

      Shanghai and East China, mainly deals in the design, manufacture,

      installation, splicing and commissioning of marine fire surface plate,

      welding platform, large scale motor test platform, assembly platform,

      large machine working surface plate and so on. As authorized sales agent

      of SINGAPORE OIL, PETROFER CHEMIE, we deal with boat fuel of SINGAPORE

      OIL and full G range of PETROFER CHEMIE' s products, as well as

      different specifications of domestic and international industrial

      lubricants, bunker oil, special industrial cleaning and surface

      treatment agent of DINITRO, TECTYL, CORTEC, MOBIL, SHELL, CALTEX, the

      Great Wall, and Kunlun. At the same time, we are agent of projectors of

      Germany Schneider, as well as all kinds of precision measuring

      instruments of MITUTOYO and SWISS TESA.

      Our machining equipments are all high tech products in the same line, including 3x21m planer, the most advanced instruments of physical and chemical laboratories in domestic and 3x6x21m heat treatment workshop, has the capacity to undertake a variety of large projects. Since our establishment, we have helped many large state owned enterprises to undertake the assembly of experimental platforms. With the support and cooperation of Shanghai Machine Tool Works, our products are sold to Japan, Germany, the United States, Taiwan Area and other countries and regions, with annual sales volume of 60 million China Yuan and export value of 2.1 million US dollars. Summing up all the advantages of state owned enterprises, wholly owned enterprises and private enterprises, we have improved our management system. Under the support and supervision of our City Science and Technology Commission, we won Technology Award many times. Our product's quality, delivery time, manufacturing process design, after sales service and quality assurance systems are better than other companies. In 2003, we designed, manufactured and installed 28m x 20m large platform for SHANGHAI BAO STEEL GROUP. The product was recognized not only by SHANGHAI JIAOTONG UNIVERSITY and TONGJI UNIVERSITY, but also by other related academic authorities, and become the industrial iconic product. Thus, we honored as the only supplier of all working platforms of SHANGHAI BAOSTEEL GROUP. In the shipbuilding industry, our company is honored as the platform and iron board diesel engine suppliers for SHANGHAI JIANGNAN SHIPYARD, CHINA SHIPBUILDING XING KONG BASE, NANTONG UNTTED HEAVY INOUSTRIES, NANTONG LIANXING PORT SHIPYARD and ZHOU SHAN COSCO SHIPPING CO., LTD., HEFEI RONG ANN POWER MACHINERY CO., LTD. and has received favorable comments from our customers.

      With a comprehensive enterprise management system, a reliable quality assurance system and advanced technical equipment, our products enjoy great popularity in domestic and overseas markets. Our policy is "Excellent management, the highest product quality, the best staff character and the first class service". We sincerely welcome customers to visit us and work together with us to create our both brilliant future.

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