BenoSton is a factory specialized in manufacturing wellhead valves and petroleum equipment. And We are very interested in OEM processing. With more than 150 of experienced working staffs including around 10 technicians, our factory is the professional manufacturing enterprise combined of R&D, production, and distribution.The main products of BenoSton are wellhead parts, valves and Christmas tree. Our factory has adopted the API standards to all products. The overseas sale volume now account for above 80% of total sale volume of our factory with customers in more than 20 countries around the world.If you have any inquiry,please contact us:serena.cheungatbenostondotcom