... /L etc We are specialized in producing and selling seamless stainless steel pipes, which are widely used in boiler, heat exchanger, condenser ... major materials are 304/304L, 316/316L, 321/H, 347H, 317/317L, 310S (2520), duplex steel (S31803/S32205), etc. We have experienced ... foremost “, we provide high quality products for our clients. TP316/316L Stainless Steel Pipes