Roschen Group Limited. is API drill pipe friction welding manufacturers and suppliers in China who can wholesale API drill pipe friction welding. We can provide professional service and better price for you. If you interested in API drill pipe friction welding products, please contact with us. Tips: Special needs, for example: OEM, ODM, customized according to demands, design and others, please email us and tell us detail needs. We follow the quality of rest assured that the price of conscience, dedicated service.