国产AV毛片,亚洲全网成人资源在线观看,狠狠综合久久久久综,国产三级成人,天天干天天色综合网,在线播放国产一区,色爽网免费视频,国产在线八区

NEWS INFORMATION

23

2021-12

What are the forming processes of stainless steel pipe fittings?

For stainless steel pipe fittings, in the production process, reasonable molding process is very important, so what is the molding process of stainless steel pipe fittings?

14

2021-12

What are the components of stainless steel pipe fittings?

Stainless steel pipe fittings have a good use in many industries, so what are the components of stainless steel pipe fittings?

29

2021-07

The national iron and steel products quality inspection center was elected as the director unit of China Foundry Association

Recently, the 2021 annual meeting of Chinas cast pipe and pipe fittings industry and the seventh general meeting of the board of directors of cast pipe and pipe fittings branch were held in Yingkou, Liaoning Province. More than 200 representatives of relevant enterprises, well-known experts and members of the cast pipe and pipe fittings industry from all over the country attended the meeting. The conference was hosted by China Foundry Association, and undertaken by casting pipe and pipe fittings branch of China Foundry Association and Liaoning Aiweier Metal Forming Technology Co., Ltd. Yao Chenghu, director of the national iron and steel products quality inspection center, and Gan Zhengbin, assistant director, were invited to attend.

With the theme of "safety, green, intelligence and cooperation", this meeting aims to build a safe, green, efficient and intelligent modern water system. At the meeting, Zhang Libo, vice president of China Machinery Industry Federation and President of China Foundry Association, Weng Yongcai, vice mayor of Yingkou Municipal Peoples government and other leaders attended the meeting and delivered speeches. Five well-known experts in the industry gave keynote reports respectively. Gan Zhengbin, assistant director of the center, was invited to give a report entitled "practice and Prospect of type test of ductile iron pipes" at the sub forum, The research direction of type test of cast iron pipe is analyzed. At the seventh general meeting of the board of directors of cast pipe and pipe fittings branch of China Foundry Association, the national steel and product quality inspection and testing center continued to be elected as the seventh governing unit and the only third-party testing organization of the branch.

In recent years, the center takes serving the quality improvement of Chinas cast pipe and pipe fitting industry as its own responsibility, provides technical support for material selection, pipe network safety and new product research and development in the water supply and drainage industry, serves more than 60% of the countrys cast iron pipe production enterprises, and has developed a fluid pipe flexible interface sealing performance test-bed. It is the only third-party testing organization in China that can carry out this project, It has provided witness testing services for international well-known certification bodies TV and SGS, and participated in the formulation of many new product group standards such as ductile iron polyethylene composite pipe and socket flexible interface steel pipe for water supply. In the next step, the center will further give full play to the technical support role of the national quality inspection center in the high-quality development of the service industry, and strive to become the inspection and test technical support base of Chinas casting pipe and even Chinas casting industry

29

2021-07

Zhejiang Yueye pipe fittings industrial Co., Ltd. was established, has a professional production of crimping parts

Non-standard products can also be customized according to customer needs. Materials have 201, 30, 4, 316 and other special materials customization. Products are widely used in petroleum, chemical, food. Metallurgy, electric power, medicine, environmental protection construction, refrigeration, fiber and other fields. Companies adhering to the "customer first, integrity first, open innovation and dedicated service" service users, connect the future! Service users, mutual benefit and win-win!

主站蜘蛛池模板: 中文字幕亚洲综久久2021| 国产永久免费视频m3u8| 欧美人与牲动交a欧美精品| аⅴ资源中文在线天堂| 99热这里只有精品免费| 久久网欧美| 91麻豆精品国产91久久久久| 日本道中文字幕久久一区| 久久国产V一级毛多内射| 免费在线a视频| 久热re国产手机在线观看| 欧美国产综合色视频| 国模私拍一区二区三区| 色香蕉影院| 国产va欧美va在线观看| 99热国产这里只有精品无卡顿"| 国产男人的天堂| 在线中文字幕网| a欧美在线| 农村乱人伦一区二区| 少妇精品网站| 视频一区亚洲| 在线国产欧美| 欧美另类视频一区二区三区| 亚洲色中色| 精品国产成人三级在线观看| 伊人久久大线影院首页| 久久久久人妻一区精品| 尤物亚洲最大AV无码网站| 网久久综合| 亚洲人成影视在线观看| 国产一区二区三区在线观看视频| 精品一区二区三区视频免费观看| 精品久久久久成人码免费动漫| 久久毛片网| 免费aa毛片| 人妻精品全国免费视频| 亚洲视频三级| 夜夜高潮夜夜爽国产伦精品| 亚洲人人视频| 日韩免费成人| 国产三级精品三级在线观看| 狼友视频一区二区三区| 国产视频大全| 精品欧美视频| 国产毛片高清一级国语| 久久久成年黄色视频| 国产精品观看视频免费完整版| 国产H片无码不卡在线视频| 国产成本人片免费a∨短片| 日本不卡在线| 不卡网亚洲无码| 国产欧美日韩专区发布| 久久国产毛片| 免费99精品国产自在现线| 亚洲中文字幕无码爆乳| 丁香婷婷在线视频| 日本国产精品一区久久久| 久久精品人人做人人爽97| 色视频久久| 欧美v在线| 久久精品亚洲专区| 亚洲欧美极品| lhav亚洲精品| 日韩在线永久免费播放| 亚洲婷婷在线视频| 中文字幕 91| 成人福利在线看| 999在线免费视频| 福利在线不卡一区| 成人福利在线看| 无码一区18禁| 久久国产亚洲欧美日韩精品| 国产性生大片免费观看性欧美| 亚洲国产欧美国产综合久久 | 久久国产精品波多野结衣| 色综合成人| 欧美色视频日本| 国产第八页| 2022精品国偷自产免费观看| 欧美一级在线播放| 四虎成人在线视频|