国产乱人伦精品一区二区,老熟妇仑乱一区二区视頻,妺妺窝人体色777777野大粗,欧美丰满熟妇XXXX喷水

Take source innovation as the main driving force and promote industrial technology upgrading

Sichuan sidaneng Environmental Protection Technology Co., Ltd. is an environmental protection high-tech group enterprise specializing in gas purification, liquid treatment and medical waste Internet of things online supervision platform. Adhering to the mission of promoting industrial technology upgrading with source innovation as the main driving force, the company is committed to special membrane separation technology to provide enterprises with cleaner production, energy-saving and environmental protection solutions.

The company's main businesses include project consulting, planning and design, equipment manufacturing, engineering construction, operation and maintenance services, etc., serving the industrial industry - new energy materials (lithium battery), metallurgy, chemical industry, petroleum, pharmaceutical, military industry, nuclear power, etc; Municipal Industry - municipal sewage, landfill leachate, hospital waste management, etc., has established long-term and stable cooperative relations with many large leading listed companies and central enterprises in the industry.