1, we got ISO9001 certificate 2, we have 20 years' work exprience 3, we can offer you high quality and lowest price products 1, product specification information Product Galvanized barrier Configuration size Length: 2mWide:1.1mFrame tube: 32mm*1.5mmMiddle panle: 16mm*1.0mmMaterial Iron Surface treatment Powder spraying Color Any color 2, product photos3, our factory and the certificate