Our company is established in 1992, we specialize in manufacturing 3 & 5 gallon bottle cap, mineral water cap, push & pull cap, carbonated soft drink cap,etc. which are made of newly PE material and in compliance with the health standard for food package, 5 gallon bottle caps get FDA approval. you are welcome to visit our website: http://sdwinner.en.alibaba.com and get more information about our products, your inquiry will be much appreciated.