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: 国产你懂得| 亚洲色成人www在线观看| 亚洲欧美精品在线| 成人国产免费| 久久久精品国产亚洲AV日韩| 亚洲AV永久无码精品古装片| 日本久久久久久免费网络| 国产精品欧美在线观看| 19国产精品麻豆免费观看| 欧美午夜在线视频| 国产女人在线| 极品国产一区二区三区| 亚洲精品国产乱码不卡| 国产91久久久久久| 亚洲三级片在线看| 亚洲精品在线影院| www.国产福利| 久久精品波多野结衣| 久久9966精品国产免费| 国产日本一区二区三区| 婷婷丁香色| 国产凹凸一区在线观看视频| 欧美一级大片在线观看| 国产呦视频免费视频在线观看| 亚洲人成电影在线播放| 国产精品久久久久久久久| 国产精品视频猛进猛出| 本亚洲精品网站| 国产va免费精品观看| 色135综合网| 亚洲中文精品人人永久免费| 欧洲成人在线观看| 欧美影院久久| www.av男人.com| 国产熟女一级毛片| a级免费视频| 色婷婷色丁香| 在线欧美日韩国产| 免费久久一级欧美特大黄| 情侣午夜国产在线一区无码| 午夜福利视频一区| 中文字幕中文字字幕码一二区| 91精品网站| 欧美激情视频二区三区| 亚洲国内精品自在自线官| 亚洲无码免费黄色网址| 久久国产精品嫖妓| 午夜丁香婷婷| 四虎影视库国产精品一区| 欧美一区二区三区国产精品| 亚洲男人的天堂网| 蝌蚪国产精品视频第一页| 91国内视频在线观看| 播五月综合| 免费在线看黄网址| 国产精品成人一区二区不卡 | 欧美一级在线看| 欧美日韩在线第一页| 欧美在线综合视频| 午夜日b视频| 日本日韩欧美| 日韩精品久久久久久久电影蜜臀| 波多野结衣一二三| 伦伦影院精品一区| 欧美一级在线| 欧美人人干| 亚洲国产精品成人久久综合影院| 最新精品久久精品| A级毛片无码久久精品免费| 无码免费的亚洲视频| 国产精品偷伦视频免费观看国产 | 在线国产三级| 亚洲高清在线天堂精品| 欧美福利在线| 欧美国产成人在线| 99精品在线视频观看| 亚洲91精品视频| 欧美日本不卡| 国内精品自在自线视频香蕉| 欧美日韩v| 免费又爽又刺激高潮网址 | 99re热精品视频中文字幕不卡|