对焊等径三通GB12459、GB/T13401公称通径Nor-minalPipeSizeDN端部外径OutsideDiameteratBevel中心至端面CentertoEnd公称通径Nor-minalPipeSizeDN端部外径OutsideDiameteratBevel中心至端面CentertoEndDCMDCMA系列SeriesAB系列SeriesBA系列SeriesAB系列SeriesB1521.31825450457.24783482026.92529500508.05303812533.73238550559-4193242.438486006106304324048.34557650660-4955060.357647007117205216576.1(73)7676750762-5598088.9898680081382059790101.6-95850864-635100114.3108105900914920678125139.7133124950965-711150168.3159143100010161020749200219.121917810501067-762711250273.0273216110011181120818762300323.932525411501168-851800350355.6377279120012201220889838400406.4426305)