Kanglongpharma was founded in 2001 and through 21years of experience,we are now a leading manufacturer of pharmaceutical packing area.We specialize in butyl rubber stopper for blood collection tube,butyl rubber stopper for infusion,butyl rubber stopper for vial,syringe plunger and all kinds of pharma rubber stoppers.All kanglongpharma's products are designed and manufactured in accordance to Iso9001-2015 standard.