pre galvanized zinc coating pipe in China Dongpengboda

Our black pipe is generally manufactured cold formed. As per your specific requirements, we are able to provide hot finished one through distressing, strictly following the standard of EN10210. With reference to the treatment for certain large welding seam, we tend to adopt the normalizing processing method for distressing to improve the whole effectiveness of pipes for the actual purposes. You can directly inform us of your various needs, and we will try to follow your requirements for a variety of pipe processing treatments.