We are specilized in supplying those stainless steel pipes & fittings in China. We have a good advantages in the price and quality. Last year, we export more than 20 million us dollars abroad. If you have any such enquiry, please contact with us. We will give you our best quotation for your reference. Regarding the sizes, it can be 6mm--152mm for round pipes and 10x10mm--127x127mm for square pipes. The material can be 304,304L,316,316L, and so on. Hope to have chance to serve you.