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




    Composition analysis of ferrous metals and their alloys

    Free cutting steel, weathering steel, nitrided steel, age hardening steel, low alloy high strength steel and hot work steel; various cast irons such as gray cast iron, ductile iron and alloy cast iron; chromium-based alloy, manganese-based alloy and High temperature alloy and other various alloy materials.

    Composition analysis of non-ferrous metals and their alloys

    Ductile iron and alloy cast iron and other cast irons; chromium-based alloys, manganese-based alloys and high-temperature alloys and other various alloy materials.

    Metallographic analysis

    Non-metallic inclusions

    Grain size

    Coating thickness

    Decarburized layer

    Low magnification

    Fracture inspection

    Hardened layer depth

    Metallographic section analysis

     

    Mirror analysis

    Coating thickness

    Metallographic method

    X-ray fluorescence

    Surface stain analysis

    Coulomb method

    Eddy current method

    Coating composition analysis

    Analysis of surface hardness and adhesion

     

    Abrasion test

    Stainless steel 10% oxalic acid   corrosion test

    Stainless steel 65% nitric acid   corrosion test

    Neutral salt spray test

    Copper ion accelerated salt spray

    Stainless steel sulfuric acid-ferric   sulfate corrosion test

    Stainless steel nitric   acid-hydrofluoric acid corrosion test

    Acid salt spray test

    Sulfur dioxide corrosion test

    Stainless steel 5% sulfuric acid   corrosion test

    Stainless steel sulfuric acid-sulfuric   acid cave corrosion test

    Hydrogen sulfide corrosion test


     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.

    Automotive metal material testing

    Free cutting steel, weathering steel, nitrided steel, age hardening steel, low alloy high strength steel and hot work steel; various cast irons such as gray cast iron, ductile iron and alloy cast iron; chromium-based alloy, manganese-based alloy and High temperature alloy and other various alloy materials.

    Get a quote
    高清性欧美暴力猛交| 九九视频在线观看视频6| 国产拍揄自揄精品视频| 精品乱码久久久久久中文字幕| 国产精品永久免费视频| 日本边添边摸边做边爱喷水| 少妇人妻精品一区二区三区 | 免费裸体无遮挡黄网站免费看| 最近免费高清版电影在线观看| 成人欧美一区二区三区视频| 国产性色AV一区二区三区| 狠狠热精品免费视频| 日韩A级无码免费视频| AV乱码一区二区三区| 久久人午夜亚洲精品无码区| 国产精品天干天干综合网| 亚洲国产精品无码一区二区三区 | 丰满少妇被猛男猛烈进入久久 | 亚洲AV日韩AV高潮喷潮无码| 国产AV旡码专区亚洲AV苍井空 | 免费无码又爽有刺激高潮的视频| 小泽玛利亚 一区二区| 久久久久久久精品免费老鸭窝| 国产在线视频一区二区三区98| 99在线精品免费视频九九视| 国产自愉自愉免费精品七区| 99精品欧美一区二区三区| 沦为公交两奶头春药高潮迭起| 豪妇荡乳1一5潘金莲2在线| julia无码人妻中文字幕在线| 亚洲第一综合天堂另类专| 99久久精品费精品国产| 国产麻豆天美果冻无码视频 | 亚洲精品无码久久久久久| 人妻无码一区二区三区| 一本一本久久a久久精品综合麻豆| 二区中文字幕| 色综合久久久久久久久五月| 无码无套少妇毛多18pxxxx| 亚洲中文字幕无码一区在线| 国内精品久久久久伊人av|