BOOM group is  a professional firm to produce rubber,plastics,mould,hardware,chemical products for more than 10years .the products have passed ISO 9001 AND QOS 9000. and we can produce according to the following standard :ASTM ,JIS ,EN .apart from normal sizes we also can make the products according to clients special requirements.we have many customers in USA, EUROPE,JAPAN anf other countries due to good service till now .we update our machines in time to assure high standard qulity .sinerely hope we can cooperate of course if you have time ,welcome to visit our factory !