409 l / 409 stainless steel tube is mainly used for automobile exhaust system of exhaust manifold, muffler. Our company has complete detection method (flattening, bending, flaring test, mechanical performance test) to ensure the production of 409/409 l stainless steel tube can meet the national standard. The price is low, thermal conductivity than austenitic good, add stable chemical element titanium, weld site mechanical performance is good, the coefficient of thermal expansion than austenitic small, heat resisting fatigue. Constant art factory "quality seek survival, prestige seek development. The pursuit of excellence, sustainable management, mutual benefit and reciprocity" consistent tenet. Wish to all customers synchronous ahead. Join hands to create a better tomorrow. Warmly welcome businessmen at home and abroad calls, letter, come to negotiate the order or to map, sample order.