Savoy Piping Inc., is an ISO 9001:2015, PED\/27\/EC and OHSAS 18001:2007 Approved Manufacturer of Stainless Steel 317L Flanges in Specification ASTM A182 F317L and Types Like 317L Weldneck Flange, 317L Blind Flange, 317L Socketweld Flange, 317L Slip On Flange, 317L Threaded Flange, 317l raped joint flens, 317l schroefflens, 317L plaatflens, 317L wnrf flens, blrf flens, swrf flens, 317l sorf flens etc.