A.①③④⑥ B.①②⑤⑥ C.①②④⑥ D.②③⑤⑥ E.②③④⑥
A.30%,0.5%~5.25%,17% B.30%,2%~5.25%,17% C.3%,0.5%~5.25%,17% D.3%,2%~5.25%,7% E.3%,0.5%~5.25%,7%
A.H型銼 B.Flex-0銼 C.Flex-R銼 D.C+銼 E.K型銼