Light porcelain combination ring TDSTechnical Parameter namemodelmarginclearanceaperturesurfacevoidagePackingStackingSeven holes serialX-0220±25206511885280200Seven-hole ribbed ringX-1220±25206512875320200Six diamond ringX-2220±25206513572340200Hexahedron ringX-3220±25206513275300200Rotate the multi-tooth ringX-4220±25206514873348200