东北少妇不带套对白_女同av久久中文字幕字_懂色av一区二区三区观看_www.亚洲综合_国产一区二区四区_日韩高清网站

logo.png

photo.png

0762-3831180

0762-3831680

微信圖片_20191031112736.png

Professional quality assurance

PROFESSIONAL

We passed ISO9001-2008 quality management system, and we were awarded as“Guangdong Hi-tech Enterprise”and “China Hi-tech Enterprise”at the same year, meanwhile we establish “Heyuan Research Center of Engineering and Technology”. Then we were awarded as “Heyuan Science & Technology Innovation Enterprise”in year 2013 and “Demonstration Area of Industry-University-research cooperation”in year 2014. And we are one of the 500 enterprises, which has the best prospective in Guangdong province.

In year 2015, “Guangdong Research Center of Engineering and Technology”, which was certified from “Guangdong Provincial Bureau of Science and Technology”was established in our company.

We have undertaken many scientific research projects of Heyuan city and Guangdong province. We have 2 “Patent for Invention”?and 16 “Patent for Utility models”.

On Jan.31, 2019, Guangdong Zhengxin Hard-material Technology Research & Development Company was established.

1.jpg

Copyright?2019 -heyuan zhengxin hardmetal carblde co..ld ? ? ICP 10229233 -1 ? ? Powered by www.gdwl.net.cn ? ? ? Sitemap

? ? ? ? ? ? ? ? ? Home? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? About us? ? ? ? ? ? ? ? ? ? ? ? ? Product Series? ? ? ? ? ? ? ? ? ? ? ? ? ? News? ? ? ? ? ? ? ? ? ? ? ? Online Recruitment? ? ? ? ? ? ? ? ? ? ?Contact Us? ? ? ? ? ? ? ? ? ?

Tel:omestic sales:0762-3831180/3831260? ? ? overseas sales:0762-3831680? ? ? Fax:0762-3831619? ? ? Email:hyzhx098@163.com?

?Zip code:517000? ? ? Address:South of Science and Technology Second Road, East of Xingye Avenue,High-tech Zone, Heyuan City

主站蜘蛛池模板: 国产精品亚洲片在线播放 | 欧美国产综合一区二区 | 91成人影院在线观看 | 九九九九九九九伊人 | 国产视频二区在线观看 | 一级中文字幕一区二区 | 91成人免费无码成人影院日韩 | 日本最新在线观看一区二区三区 | 国产精彩视频一区二区三区 | 久久之久 | 亚洲狠狠插 | 国产91精品入 | 澳门 成人av | 久久国产精品嫩草影院的推荐理由 | 久草色在线 | 九九视频免费观看 | 欧美在线看 | WWW国产亚洲精品久久久 | 欧美极品免费 | 蜜臀忘忧草久久久久久久aⅴ | 亚洲av日韩aⅴ无码色老头 | 亚洲精品国产精品久久99热 | 老司机久久精品视频 | 埃博拉病毒在线观看 | 蜜桃av一区二区三区 | 欧美麻豆久久久久久中文 | 日韩欧美在线观看一区 | 亚洲精品一区二区三区蜜桃 | 亚洲无码avvv久久影院 | 免费黄色片在线观看 | 国产一区久久精品 | 黄视频一区 | 久草在线观看资源 | 九色麻豆| 99精品视频在线 | 精品成人国产在线观看男人呻吟 | 九热视频| 在线观看无码视频 | 久久婷婷人人澡人人爽人人喊 | 欧美乱码精品一区二区 | 天天操夜夜艹 |