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- pbe1
- nipple1
- swage nipple1
- npt threaded1
- data sheet7
- reducing coupling1
- 6000lb reducing coupling1
- 3000lb reducing coupling1
- pn151
- din flange1
- ansi 150lb1
- single sphere1
- flange and fitting industry1
- air pollution1
- haze pollution1
- butt weld pipe fittings1
- weight calculation1
- pipeline supply1
- hebei steel1
- oil price falling1
- uns n088251
- incoloy 8251
- cast iron lug type butterfly valve1
- lug type butterfly valve1
- class 1501