一阴吞两阳与macd的关系,亚洲精品无码中文久久字幕,欧美牲交黑粗硬大,狠狠的干性视频

SHANDONG YUELONG
RUBBER&PLASTIC TECHNOLOGY CO.,LTD.
The course of history
Shandong Yuelong Rubber & Plastic Technology Co., LTD., formerly known as a government enterprise "Laizhou Rubber and Plastic Factory", was founded in 1989, which produced China's first 3-inch 35MPa high-pressure drilling hose, and won the second prize of State Ministry of Chemical Industry. Yuelong people have overcome all difficulties to start their own business. After decades of hard work, Yuelong has developed into a high-tech leader in the industry, with customers all over the world. Yuelong people will continue to work hard and the pursuit of technology and quality will never ends.
2019
The company was founded 30 years.
Obtained Safety Certificate of wire braided hose, wire spiral hose, and hose for coal mine.
Construction of flexible hose testing laboratory for Marine engineering equipment.
The brand was valued at 116 million RMB.
2018
Set up Xuzhou Office.
Approved as Yantai Industrial Double-leader Top 50 Enterprise.
2017
Established UK Branch, Shanghai Sales Company and Xuzhou Sales Company.
Tech Engineering Co., LTD.
2014
Tension-system fire-resistant hydraulic hose, joint with 981 drilling platform, won the National special prize for scientific and technological progress, the highest award in the industry.
Yuelong trademark is awarded as "China Famous Brand".
2013
Tech Engineering Co., LTD. was founded .
2011
The company changed its name to "Shandong Yuelong Rubber & Plastic Technology Co., LTD."
2010
The company is recognized as a National "High-tech Enterprise", and has been maintained until now.
2006
"Techfluid Yantai Limited." Is founded, specializing in the production of various Marine equipment flexible pipeline products. It has also obtained relevant certifications such as ABS, DNV, CCS and so on.
2005
"Shandong Yuelong Rubber & Plastic Technology Co., LTD." is established as a subsidiary, which introduced the first automatic intelligent rubber mixer production line in the rubber hose industry. The V belt for general transmission service obtained the National Inspection Exemption Certificate
2000
Through enterprise reform, transformed into a joint-stock cooperative company, "Laizhou Yuelong Rubber & Plastic Technology Co., LTD."
1989
Shandong Yuelong Rubber & Plastic Technology Co., LTD., formerly known as a government enterprise "Laizhou Rubber and Plastic Factory", was founded in 1989, which produced China's first 3-inch 35MPa high-pressure drilling hose, and won the second prize of State Ministry of Chemical Industry.