Welcome to our Welded Neck Flange Factory, offering top-quality ASTM A350 LF2 flanges. Our products boast a 12-inch diameter, DN300 size, and are designed for Class 1500 LB and PN250 applications. With a robust 1-inch thickness and WT of 25.4mm, these flanges meet ASME B16.5 standards, feature RTJ ends, and come with a durable anti-rust black painting. Trust our factory for reliable and high-performance flange solutions.