日韩欧洲精品无码AV,99国产午夜精品一区二区天美,精品久久免费一区二区三区四区,久久综合图区亚洲综合图区,久久久久亚洲AV免费观看,精子网久久国产精品,亚洲AⅤ无码一区二区二三区性色,亚洲精品国产电影,亚洲资源在线观看,婷婷五月丁香在线

  • 
    
  • <ul id="yy6ca"></ul>
  • <del id="yy6ca"></del>
    <ul id="yy6ca"></ul>
    <strike id="yy6ca"><menu id="yy6ca"></menu></strike>
    Hotline:400-880-1556

    English




    basic introduction

    Our services mainly involve the mechanical properties of ferrous metals, non-ferrous metals, mechanical equipment and parts. Tests and tests involving chemical composition analysis, metallographic analysis, hardness, corrosion performance, coating performance, microscopic analysis, fastener performance, pipe process performance, welding process evaluation and skill evaluation.

    ZRLK provides a series of tests to identify and inspect the material performance, process performance and safety performance of metal materials products.

    For products

    Metal raw materials such as plates, bars, profiles, forgings, castings and all metal parts and related.

    Project capabilities

    Mechanical properties

    Tensile, impact, bending, fatigue,   compression, shear, cupping, breaking, peeling, welding test, non-standard   mechanics

    Chemical composition analysis

    Iron and steel, non-ferrous metals   (OES/ICP/X-Ray/wet titration/spectral analysis/gas element/spectrophotometry)

    Metallographic analysis

    Microstructure, grain size,   non-metallic inclusions, phase composition content, fracture streamline,   macro inspection, hardened layer / carburized nitriding layer depth, weld   metallography

    Hardness

    Rockwell, Brinell, Vickers, micro   hardness, Knoop, Leeb, nano hardness, etc.

    Corrosion performance

    Intergranular corrosion, stress   corrosion, salt spray corrosion, pitting corrosion

    Coating performance

    Coating quality, adhesion, coating   thickness, corrosion resistance

    Microscopic analysis

    Fracture analysis, foreign body   analysis, micro-morphology, etc.

    Fastener performance

    Tension, load holding, wedge load,   torque, anti-slip, etc.

    Pipe process performance

    Flaring, flattening, curling,   static load pressure, etc.

    Welder

    Welding procedure qualification,   welder skill assessment, welding procedure specification

    Standards involved

    image.png

    Our advantage

    1. With a professional qualification and experienced expert technical team, we can provide you with professional consultation and services.

    2. Have advanced laboratory equipment to ensure the accuracy and reliability of test data.

    3. As a third-party testing and certification organization trusted by customers worldwide, we are your certificate of quality.


    Online consultation

    Online consultation

    Recommend
    • BSCI certification

      BSCI certification

      BSCI certification is an abbreviation of BusinessSocialComplianceInitiative, and Chinese is called business social standard certification. BSCI is an organization that advocates the business community to abide by social responsibility. At the same time, it is a non-profit organization.

    • Enterprise CMA certification

      Enterprise CMA certification

      CMA, the name is \"China Metrology Accreditation\", the abbreviation of \"China Metrology Accreditation\" in English. According to the provisions of Article 22 of the Metrology Law of the People’s Republic of China: “The product quality inspection agency that provides notarized data to the society must be evaluated by the metrological administrative department of the people’s government at or above the provincial level for the capability and reliability of metrological verification and testing. Qualified.\"

    • CNAS certification

      CNAS certification

      Laboratory accreditation is a third-party certification that CNAS has the ability to perform specific testing and calibration work for testing and calibration laboratories.

    Metal material testing

    Our services mainly involve the mechanical properties of ferrous metals, non-ferrous metals, mechanical equipment and parts. Tests and tests involving chemical composition analysis, metallographic analysis, hardness, corrosion performance, coating performance, microscopic analysis, fastener performance, pipe process performance, welding process evaluation and skill evaluation.

    Get a quote
    亚洲人成网站在线播放2019| 色一情一区二区三区四区| 公又粗又大又长挺进我的| 亚洲欧洲AV综合色无码| 污污内射在线观看一区二区少妇 | 亚洲成人影院在线| 国产精品视频一区国模私拍| 免费成人高清在线视频| 四虎免费大片aⅴ入口| 久久午夜视频| 国产三级网站在线观看| 成人伊人青草久久综合网| 99久久久久成人国产免费| 免费的国产二级黄| 欧美性xxxxx极品少妇| 精品人妻无码区二区三区| jk美女自慰喷水| 水蜜桃亚洲一二三四在线| 国产综合久久久久久鬼色 | 亚洲中文字幕久久无码精品| 久久国产色av免费看| 亚洲欧洲自拍拍偷午夜色无码| 超短裙嫩模白浆高潮在线| 成人无码精品一区二区在线| 久久精品国产99久久久香蕉| 又污又爽又黄的网站| 亚洲乱码国产一区三区| 久久久久久久人妻无码中文字幕爆| 亚洲色av性色在线观无码| 国产av无码精品色午夜 | 亚洲av无码一区二区一二区潮浪 | 久久频这里精品99香蕉| 麻豆网神马久久人鬼片| 狠狠色狠狠色综合日日五| 精品国产亚洲av麻豆| av色综合久久天堂av色综合在| 久久亚洲精品成人av| 美女粉嫩饱满的一线天mp4| 亚洲avav天堂av在线网毛片| 亚洲av无码国产精品色| 丰满多毛的大隂户视频|