... of copy of B/LCertificateISO9001 2000 COMPANY BRIEF INTRODUCTION We,Shanghai Changbo Industrial CO.,LTD ,are professionally in manufacturing filter cloth ... and OEM business, if you are interested in our filter products ,pls feel free to contact with us ASAP.Sincerely hoping ... establish relations with your esteemd company.Tks.OUR FACTORY AND PRODUCTS glass fiber filter paper in rolls (shanghai)