<cite id="oexcc"><track id="oexcc"></track></cite>
<sup id="oexcc"></sup><p id="oexcc"><li id="oexcc"><pre id="oexcc"></pre></li></p>
<p id="oexcc"><li id="oexcc"></li></p>
        91福利精品老师国产自产在线,亚洲大成色WWW永久网站动图,亚洲AV无码专区国产H小说 ,国产精品伦人视频免费看,国产一区二区丁香婷婷,国产人禽杂交18禁网站,影音先锋5566夜色资源网,2021国产精品视频网站

        常熟國強和茂管材有限公司

        Sinupower Heat Transfer Tubes Changshu Ltd.
        CN EN

        400-100-7068

        + 微信號:WEIXINHAOMA

        Your location : Home > News > Company Dynamics

        Main standard and material of precision bright tubes

        Source:en      Release date: 2022-05-17
        Information summary:Because the precision bright tube is a kind of high-precision steel pipe material that has been processed by fine drawing or cold rolling, because the precision bright tube has no oxide layer on the inner and outer walls, it can withstand high pressure without leakage, high precision, high finish, and no cold bending. Deformation, flaring, flattening without cracks, etc.
        Because the precision bright tube is a kind of high-precision steel pipe material that has been processed by fine drawing or cold rolling, because the inner and outer walls of the precision bright tube have no oxide layer, it can withstand high pressure without leakage, high precision, high finish, no deformation after cold bending, expansion It is mainly used to produce pneumatic or hydraulic components, such as air cylinders or oil cylinders, which can be seamless tubes or welded tubes. The chemical composition of precision bright tubes is carbon C, silicon Si, manganese Mn, sulfur S, phosphorus P, chromium Cr.
           Main standards: GB/T3639, DIN2391-94/C, DIN2445, EN10305, DIN1630, DIN1629, ASTM A106, ASTM A179, JIS G3445.
           Main materials: 10#, 20#, 35, 45, 40Cr, 25Mn, 37Mn5, St35(E235), St37.4, St45(E255), St52(E355).
           The main purpose of the precision bright tube: automobiles, machinery parts and other machinery that have high requirements on the accuracy and smoothness of the steel tube. In 2--8 wires, many machining users are slowly converting seamless steel pipes or round steels into precision bright pipes in order to save labor, material and time losses.
        主站蜘蛛池模板: 国产精品福利自产拍在线观看| 亚洲线精品一区二区三区八戒 | 98久免费精品视频在线观看 | 亚洲成a人在线观看| 久久中文字幕篠田优| 桃花岛亚洲精品tv自拍网站| 成本人妻片无码中文字幕免费| 色综合久久综合中文综合网| 亚洲超碰无码色中文字幕97| 色综合久久五月天久久久| 免费国产人成高清在线视频 | 欧美午夜理论在线网站入口| 沛县| 国产在线观看精品一区二区三区| 国产日韩综合一区在线观看| 人妻交换av一区二区| 株洲县| 中文字幕乱码无遮挡精品视频| 91精品国产自产在线老师啪l | 久久久精品中文字幕| 性欧美极品XXXX欧美| 一区二区亚洲精品国产| 无码精品久久久久久人妻中字| 隆子县| 国产精品久久久久久久专区| 三上悠亚精品专区久久| 欧美,日韩,国产不卡视频| 亚洲av日韩av无码尤物| 边摸边吃奶边做爽gif动态图| 欧美 亚洲 国产 精品有声| A级毛片视频无码免费| 91视频一88av| 性色欲情网站iwww| 亚洲香蕉伊综合在人在线观看| 欧美日韩国产在线人成dvd| 99日本精品永久免费久久 | 少妇夜夜爽夜夜春夜夜高潮| 九九热这里都是精品| 国产一级特黄aa大片软件| 成人国产精品2021| 久久综合88熟女人妻|