久久午夜综合久久,国产成人精品av在线,在线观看av国产一区二区,www.在线观看av,成人欧美一区二区三区在线观看,亚洲精品成人18久久久久,日本在线观看一区,亚洲视频一区二区在线观看
0571-64618808

Company Profile

ABOUT US

Hangzhou Chunjiang Valve Co., Ltd. (formerly Zhejiang Tonglu Valve Factory) is located at No. 369 Baoxin Road, Tonglu Economic Development Zone, Zhejiang Province, the most beautiful county in China. The company was founded in 1972. For nearly half a century, we have been committed to professional valve product research and development, design, and manufacturing. We have obtained national special equipment manufacturing license, ISO9001, ISO14001, ISO45001 management system certification, emergency management department fire product certification, US CUPC product certification, and EU CE certification.


The company occupies an area of 120 acres, has a production capacity of 8,000 tons per year, and more than 3,500 product varieties. It can provide users with relatively complete fluid medium control products and services. The company's valve products have been exported to Germany, the United States, Britain and other countries for a long time, providing valve products for multiple subway projects.


The "Chunjiang" trademark is a well-known trademark in China and a well-known trademark in Zhejiang Province. The company is a national high-tech enterprise, a patent demonstration enterprise in Zhejiang Province (more than 20 invention patents), a national customer satisfaction enterprise, and a Zhejiang industrial and commercial enterprise AAA-level contract-abiding and trustworthy unit , Tax credit A-level enterprise, qualified supplier of military procurement network, qualified supplier of China National Nuclear Corporation, Siemens core supplier.


The company is a member of China General Machinery Valve Branch, the vice chairman unit of Water Supply and Drainage Equipment Branch of China Construction Metal Structure Association, and a member of China City Gas Association. The company participated in the formulation of more than 30 national standards and industry standards such as "Reduced-pressure backflow preventer", "Self-operated differential pressure control valve for heating and air conditioning", "Self-operated flow control valve for heating and air conditioning". He is the provincial enterprise research institute, the deputy leader of the national backflow preventer research group, and the main author of the backflow preventer detection method.


The company has a team of well-qualified employees and a positive corporate culture. Based on the concept of "Credit First, Customer Satisfaction, and Sustainable Management", we continue to innovate products and services, and create brilliance together with new and old customers.


主站蜘蛛池模板: 精品美女一区二区三区| 欧美日韩国产精品一区二区三区| 26uuu亚洲国产精品| 97精品国产aⅴ7777| 91热精品| 国产黄一区二区毛片免下载| av午夜剧场| 欧美日韩一区二区三区在线观看视频| 欧美日韩国产精品一区二区| 亚洲一卡二卡在线| 亚洲精品乱码久久久久久麻豆不卡| 香蕉av一区| 亚洲乱玛2021| 日本一区二区三区电影免费观看| 久久久99精品国产一区二区三区| 亚洲欧洲一区二区| 国产乱码一区二区| 九九久久国产精品| 最新日韩一区| 亚洲国产一区二区精华液| 欧美一区二区久久久| 国产欧美一区二区三区免费视频| 午夜国内精品a一区二区桃色| 国产精品免费不卡| 久99久视频| 91avpro| 国产精品二区一区二区aⅴ| 国产无套精品一区二区| 午夜电影一区| 日韩精品乱码久久久久久| 久久99久久99精品免观看软件 | 小萝莉av| 狠狠色噜噜狠狠狠狠2021免费| 午夜理伦影院| 秋霞三级伦理| 国产一级自拍| 午夜精品一区二区三区在线播放| 中文字幕一区二区三区乱码视频 | 亚洲欧美日本一区二区三区| 国产黄色一区二区三区 | 91黄色免费看| 国产69精品久久777的优势| 狠狠色丁香久久综合频道| 亚洲一区欧美| 久久精品视频3| 日韩精品免费一区二区三区| 欧美乱大交xxxxx古装| 公乱妇hd在线播放bd| 国产亚洲另类久久久精品 | 亚洲福利视频一区| 日韩精品免费一区二区三区| 波多野结衣女教师30分钟| 国产天堂一区二区三区| 国精偷拍一区二区三区| 国产精品一区二区毛茸茸| 国产精品欧美一区二区三区奶水| 91精品美女| 一区二区久久精品| 欧美片一区二区| 午夜看大片| 国产视频二区| 欧美精品在线不卡| 国产精品精品国内自产拍下载| 狠狠色综合欧美激情| 久久久久国产精品www| 中文字幕一区二区在线播放| 久久久久国产精品www| 欧美一区二区三区黄| 国产精品视频二区三区| 亚洲精品日韩色噜噜久久五月| 亚洲欧美一卡| 精品国产一二区| 欧美一区二区三区日本| 国产欧美性| 狠狠色噜噜狠狠狠合久| 99精品视频一区二区| 国产精品18久久久久久白浆动漫| 国产精品久久久麻豆| 久久青草欧美一区二区三区| 国产精品一二三区免费| 欧美精品乱码视频一二专区| 国产一区二区三区黄|