Shenzhen Excel Building Product Co., Ltd is a professional manufacturer in making building materials and products since 1993, our products include metal stud & track partition system, main channel & furring channel, gypsum board suspension system, T grid system, wall angle, etc. Our factory has successfully passed and got the ISO 9001 International Quality System. All of our building products have passed the examination of the domestic authoritative department and the experts. At the same ...