Shanghai Naju Polymer Material Co., Ltd. is a professional manufacturer located in Shanghai, integrating R&D, production and sales, with advanced processing equipment and strong technical strength. The main products are butyl tape, butyl waterproof tape, butyl waterproof membrane, roof waterproof tape, roof butyl flashing, roof ventilation membrane, and is an active participant in the butyl tape industry. Excellent roofing system solutions have become A rising star in the roofing building materi