麻豆人妻无码性色AV专区,亚洲AV极品无码专区在线观看,18禁美女黄网站色大片在线,秋霞无码久久久精品,宅男噜噜噜66网站在线观看,真人无码作爱免费视频网站,中国亚州女人69内射少妇,丝袜美腿亚洲一区二区,少妇高潮无套内谢麻豆传,国产精品无码AV片在线观看播

<center id="ojlzu"></center>
<rt id="ojlzu"></rt>
    <rt id="ojlzu"></rt>
  1. <rt id="ojlzu"></rt>
      1. Wuxi Gotele Metal Products Co., Ltd : CN EN
        首頁 >>新聞動(dòng)態(tài) >>金屬行業(yè)新聞

        What Kind of Steel is Alloy Spring Steel?

        Alloy spring steel is based on carbon steel, by adding one or several alloying elements to improve the mechanical properties, hardenability and other properties of steel to meet the steel required for the production of various springs.




        The basic composition series of alloy spring steel includes silicon manganese spring steel, silicon chrome spring steel, chromium manganese spring steel, chromium vanadium spring steel, tungsten chromium vanadium spring steel and the like. Based on these series, there are some grades that incorporate alloying elements such as molybdenum, vanadium or boron in order to improve their performance in some aspects.

        In addition, some steel grades, such as high-quality carbon structural steel, carbon tool steel, high-speed tool steel, and stainless steel, are selected as spring steels.


        2. Classified according to production and processing methods
        (1) Hot rolling (forging) Steels include hot rolled round bars, square steel, flat steel, steel plates, forged round steel and square steel.

        (2) Cold drawing (rolling) Steel includes steel wire, steel strip and cold drawn steel (cold drawn round steel).


        3. Classified according to steel delivery status
        (1) Hot rolling (forging) steel
        A. Delivery in hot rolled (wrought) condition The steel is thermoformed into a spring and then quenched and tempered.
        B. Delivery in an annealed condition The steel is cold formed into a spring and then quenched and tempered.
        All of the above should meet the requirements of the corresponding delivery state hardness.

        (2) cold drawing (rolling) steel


        For our full list of products that we offer check out our website here. Be sure to join the conversation in our LinkedIn groupFacebookTwitter . Try also our WeChat by scanning the QR code below.


        Susan F.//SMC Editor

        首頁電話產(chǎn)品導(dǎo)航
        CN EN
        成人影院免费观看在线播放视频| 亚洲最新最近中文字幕| 久精品久久精品久久精品| 日本在线免费精品视频| 九九亚洲| av中文字幕一区二区三区在线 | 日本天堂在线中文字幕| 激情综合网俺也狠狠地| 日韩女同一区二区三区久久| 国产精品剧情一区二区三区av| 久久精品成人中文字幕| 国产精品伦理一区二区三区| 亚洲精品天堂日本亚洲精品| 亚洲乱码中文字幕综合69堂| 午夜福利成人精品视频| 自慰无码一区二区三区| 国产av一区二区凹凸精品| 成人午夜伦理在线观看| 国产成人综合精品三级| 国产精品久久精品99| 午夜激情亚洲中文字幕| av免费在线观看精品国产| 国产丝袜美腿诱惑在线观看| 色婷婷孕妇av一区二区三区| 亚洲欧美中文字幕在线一区| 人妖高跟鞋TS人妖极品| 老男人久久青草AV高清| 一本色道久久亚洲综合av蜜桃| 欧美日韩国产VA另类| 狠狠做深爱婷婷综合一区| 亚洲专区在线观看第三页| 人妻中出一区二区三区| 又大又硬又黄又刺激的免费视频| 国产精品一级av一区二区| 日日拍夜夜嗷嗷叫国产| 日韩av大片免费在线观看| 粉嫩av一区二区三区| 天天做天天爱夜夜爽毛片毛片| 国产大陆av一区二区三区| 亚洲人成网站在线播放无码| 国产日韩精品视频一区|