... we guarantee the quality we promised.Rigid PVC is a strong, stiff, low cost plastic material that is ... weather resistance. It has a high strength-to-weight ratio and is a good electrical and thermal insulator. PVC ... , why choose usOur Chairman of Disonbor Group is a great person, he put the right people to ... let our work quicker, and more efficient.Disonbor is a group company, we have 5 factories, we have ...