We now have one of the most advanced production machines, experienced and qualified engineers and workers, regarded quality manage systems and a friendly skilled sales group pre/after-sales support for Stainless Steel Flange, Carbon Steel Flange, Pipe Blind Flange, Alloy Steel Flange, Pipe Plate Flange Because we stay within this line about 10 years. We got very best suppliers aid on quality and cost. And we had weed out suppliers with poor high-quality. Now lots of OEM factories cooperated with us too.