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| model | A | B | 1 | orderring number | weight/kg |
| 16 | 76 | 38 | loose flange | 7434 | 0.34 |
| 25 | 116 | 58 | loose flange | 7435 | 0.79 |
| 35 | 126 | 63 | loose flange | 7436 | 1.13 |
| 50 | 160 | 80 | loose flange | 7437 | 2.04 |
| 63 | 210 | 105 | loose flange | 7438 | 5.67 |
| 80 | 236 | 118 | loose flange | 7439 | 6.90 |
| 100 | 270 | 135 | loose flange | 7440 | 8.85 |
| 150 | 334 | 167 | loose flange | 7441 | 14.52 |
| 200 | 406 | 203 | loose flange | 7442 | 21.32 |
| 250 | 416 | 208 | loose flange | 7443 | 27.22 |
We are Chuanbei Vacuum Technology (Beijing) Co., Ltd specializing in the manufacture and export of vacuum products including vacuum pumps, vacuum valves, vacuum bellows and flange. We can produce standard vacuum fittings and non-standard fittings. We can produce the products according to the customer's drawings and requirements. Our products have enjoyed great popularity in many countries.