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20741-T
45°公制内螺纹74°内锥面密封
45°GB METRIC FEMALE 74°CONE SEAT
E THREAD E
S
H
20741-33-12T
M33X2
20
41
20741-36-14T
M36X2
20741-39-16T
25
20741-45-20T
M45X2
20741-52-24T
M52X2
60