Developing and manufacturing airtight zippers & waterproof zippers products since 1998, Our Company(Shanghai SZIP Zipper Manufacturing Co.,LTD) are professional manufactory for airtight proof zippers & water resistant zippers in China. In 2017, due to rapid enterprise growing and strategic improvement, our factory address was changed to Dongtai with the new company name Dongtai SZIP Science&Techno...