These fittings are 316H seamless ASTM A304 WP316H 180 Deg SR U Bends. The specifications are 8” SCH40, 10” Sch40, 10” Sch160 respectively, and they were produced for a specific project of an international client. All the bends have been inspected by an appointed inspector prior to delivery. It took us 10 days to finish production after receiving the raw material 316H pipes. The client was satisfied and we fulfilled repeat orders.