压力容器法兰标准下载
- 12-19HG/T21531-95带颈对焊法兰手孔
- 05-19SHT501 PN5.0榫槽面对焊夹套钢制管法兰结构和尺寸
- 05-19SHT501 PN4.0凹凸面对焊夹套管法兰标准尺寸
- 05-19SHT501 PN2.5榫槽面带颈平焊夹套管法兰结构和尺寸
- 05-19SHT501 PN1.6凹凸面带颈平焊夹套管法兰标准
- 05-19SHT501 PN5.0凸面带颈平焊夹套管法兰结构和尺寸
- 05-19SHT501-1997 PN2.0凸面带颈平焊夹套管法兰标准
- 05-19JB/T4701-2000 PN0.25甲型平焊法兰标准
- 05-18SHT501 PN4.0凸面带颈平焊夹套管法兰标准
- 05-18SHT501 PN2.5凸面带颈平焊夹套管法兰结构和尺寸
- 05-18SHT501-1997 PN1.6凸面带颈平焊夹套管法兰标准
- 05-18SHT501-1997 PN1.6凸面板式平焊夹套管法兰标准