99国产精品99在线观看,亚洲欧美日韩综合在线观看不卡,夜间不卡av中文字幕,久久精品国产清高在天天线

      About us

    From its founding of the first factory as Zhanhua Darong Chemical Technology Co., Ltd in 2002, DARONG CHEMICAL has shown continuous growth over the years, and in 2012 the completion of the Zhanhua Darong Chemical Technology Co., Ltd became the stepping stone to facing new challenges in the next phase of our growth.
    Zibo Darong Chemical Technology Co., Ltd was established in 2002, mainly producing sulfur monochloride and sulfur dichloride which are used to produce lubricate additives. With the full realization of DCS automation, the total capacity of sulfur chlorides reached 10,000 tons annually at present. 
    With the experienced technicians and complete inspection equipment, our products are highly appraised by our customer.
    The Zhanhua factory was built in the north-city industrial park located at Zhanhua county, Binzhou city, Shandong province in 2010, which is 200 kilometers away from Tianjin port, 300 kilometers away from Qingdao port. The factory covers an area of 68,000 m2, construction area 30,000 m2
    The productive capabilities of the factory are 2,000 tons of rubber chemicals and 2,500 tons of sulfur chemicals. The factory supplies high quality products to different industries.
    We put the environment and safety first, making efforts to harmonize with the environment and all of our employees do their best to create products of the best quality.
    The Zhanhua factory will continue to move forward as a state-of-the-art fine chemicals production facility that produces the highest value-added products.
    The Darong research & development center was established in 2011 and uses its unique Know-how to develop new products and improve the quality of our products.
    We possess a great staff consisting of researchers that hold masters and doctors degrees and conduct a lot of cooperative work with other research institutes in an effort to make technological innovations. We are also making efforts to develop products for modern electronic information industries and we also conduct research and development of new materials for new industries.
    Using state of the art analysis equipment such as the HPLC, GC, MS, NMR, DSC and FT-IR we do our best to control the quality of our products in order to satisfy our customers.
    We are also doing our best to secure the competitive powers of our clients by providing them with the products that they require in the rapidly changing market by developing environmentally friendly products for special uses.

    三点水一个色是什么字| 婷婷激情亚洲综合综合久久| 欧美日韩成人精品久久久| 国产一级二级三级在线观看| 久久秘一区二区三区| 亚洲成av一区二区三区| 日本精品一线在线观看| 午夜精品久久久久久99| 亚洲成av一区二区三区| 欧美日韩成人精品久久久| 欧美大片免费看片入口| 国产精品亚洲А∨天堂网不卡| 91精品一区二区三区蜜臀| 欧洲在线观看亚洲三区| 一区二区三区欧美日韩| 亚洲欧美成在线观看| 九九免费观看精品视频| 欧美高清手机一区二区| 欧美一区二区三区啪啪| 91久久久久人妻精品专区| 国产亚洲综合性久久影院| 色婷婷是五月综合色| 国产三级三级在线播放| 亚洲国产日韩一区精品| 国产精品综合色国产亚洲欧| 亚洲精品欧美日韩专区| 99久久成人国产精品| 九七成人操碰人人看小视频| 91偷自产一区二区三区蜜尹臀| 亚洲欧美日韩国产精品专区| 学生妹在线观看无码| 国产第一页久久亚洲| 国产v片在线免费观看| 日韩一区二区三区久久久| 日韩一二三区中文字幕在线视频精品| 国产一级r片内射老熟女| 国产成人av一区二区三区在线观看| 国产精品久久久久久福利69| 欧美激情国产精品视频| 韩国午夜理伦三级理论电影| 国产三级三级在线播放|