タイトルまたは説明

this Equal Coupling is made from carbon steel Press connection is to put the seal ring at the bulging ring to press both sides of the bulging ring After pressing, both sides of the bulging ring are closely connected with the pipes to prevent it from leaking Related development and production of the products are all based on German-standard DIN EN ****2 and DVGW W **4 Relevant inspection and certification departments have issued report on the product safety, which is favorable for use Double-pressure pipe connection system has been widely used in China and foreign countries with good response The external diameter of the product is *****0mm and the wall thickness is 1.**2.0mm