OCHIAI Products are available from MARYLAND METRICS
You may use our RFQ (request for quotation form)
web: mdmetric.com        e-mail

U Ring Chart shows a selection of sizes available. For full specifications on the U RING, click the download button.  Size No.     Ring Dimensions d A D C B t    UTW - 3.2 3.2 8.7 8.0 2.8 4.6 0.6    UTW - 4 4 10 9 3.6 5.3 0.7    UTW - 5 5 12.8 11.6 4.4 6.8    UTW - 6 6 14.8 13.5 5.3 8    UTW - 7 7 17 15 6.2 9 0.9    UTW - 8 8 19.5 17.5 7.1 10.5 1