![Haihao Group finished the customized flange collar order as per clients requirement | ASTM A234 butt weld pipe fittings,A182 forged pipe fittings,B16.5 weld neck flange,API 5L seamless pipes Haihao Group finished the customized flange collar order as per clients requirement | ASTM A234 butt weld pipe fittings,A182 forged pipe fittings,B16.5 weld neck flange,API 5L seamless pipes](https://www.haihaopiping.com/wp-content/uploads/2017/01/Flange-Collars-Design-In-EN1092-1-Standard.jpg)
Haihao Group finished the customized flange collar order as per clients requirement | ASTM A234 butt weld pipe fittings,A182 forged pipe fittings,B16.5 weld neck flange,API 5L seamless pipes
![Weld neck collar, aluminum according to EN 485/755, EN AW 1050A, PN10/16, in accordance with EN 1092-1 - Jakob Hülsen GmbH & Co. KG Weld neck collar, aluminum according to EN 485/755, EN AW 1050A, PN10/16, in accordance with EN 1092-1 - Jakob Hülsen GmbH & Co. KG](https://huelsen.de/wp-content/uploads/2018/06/Jakob_Huelsen_05_Bund.png)
Weld neck collar, aluminum according to EN 485/755, EN AW 1050A, PN10/16, in accordance with EN 1092-1 - Jakob Hülsen GmbH & Co. KG
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Copper Nickel 90/10 CuNi Pipe Stub End DIN 86037 Copper nickel Weld neck collar inner flanges - Pipe fittings,Flange,piping material manufacturer
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