We are specilized in supplying those stainless steel elbows, tees, flanges, reducers, caps, and etc. We have a good advantages in the price and quality. Last year, we export more than 5 million us dollars abroad just for those fittings. If you have any such enquiries, please contact with us. We will give you our best quotation for your reference. Regarding the sizes, it can be 1/4"-40". And for standards, we adopt ASTM, JIS, DIN, BS and or according to your drawings. We accept third party inspection for the quality.