又粗又黑又大的吊av,丰满人妻一区二区三区免费视频,色欲欲www成人网站,久久亚洲av无码精品色午夜麻豆

logo_Jiangsu Zhengdan Chemical Industry Co., Ltd.

Stock code : 300641

Hot products:Vinyltoluene (VT) , High-flash aromatic naphthas (SA) , Trimellitic anhydride (TMA)-White or yellowish Flake ,
zhengdanchem.com
Talent Concept

People-oriented   Teamwork   Efficeiency
Provide better opportunities for the chemical industry talents

our perspective

  • We respect individuals and value the contribution of each employee.
  • We sincerely care for our customers and pay attention to their reputation.
  • We insist on pursuing sustainable development with professional development concepts.
  • We are united and self-reliant.
  • We strive to develop together with our customers and partners, value sharing.
  • We pay attention to environmental protection and actively return to society.

Go
TOP