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Classification

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> JS Series

> Long Neck Butt Welding Flange

> Blind Flange

> Welding Neck Flange

> Welding Neck Flange

> Blind Flange

> Flat Welded Ring Flange With Loose Sleeve

> Welding Neck Flange

> Welding Neck Flange

> Welding Neck Flange

> Blind Flange

> Flat Welded FlangeWith Neck

> Non-standard Blind Flange

> Long Neck Butt Welding Flange

> Non-standard Blind Flange

> Welding Neck Flange

> Welding Neck Flange

> Flat Welded Ring Flange With Loose Sleeve

> Large Caliber Flange

> BS Series

> Blind Flange

> Non-standard Blind Flange

> Non-standard Blind Flange

> RS Series

> Long Neck Butt Welding Flange

> Blind Flange

> Welding Neck Flange

> Welding Neck Flange

> Blind Flange

> Flat Welded Ring Flange With Loose Sleeve

> Welding Neck Flange

> Welding Neck Flange

> Welding Neck Flange

> Blind Flange

> Flat Welded FlangeWith Neck

> Non-standard Blind Flange

> Long Neck Butt Welding Flange

> Non-standard Blind Flange

> Welding Neck Flange

> Welding Neck Flange

> Flat Welded Ring Flange With Loose Sleeve

> Large Caliber Flange

> Chemical

> Blind Flange

> Welding Neck Flange

> Flat Welded Ring Flange With Loose Sleeve

> Welding Neck Flange

> Welding Neck Flange

> Non-standard Blind Flange

> Non-standard Blind Flange

> Flat Welded Ring Flange With Loose Sleeve

> Energy Department

> Long Neck Butt Welding Flange

> Blind Flange

> Non-standard Blind Flange

> Long Neck Butt Welding Flange

> Non-standard Blind Flange

> Large Caliber Flange

> Ship Logo Series

> Blind Flange

> Non-standard Blind Flange

> Non-standard Blind Flange

Energy Department

NB/T 47020-2012,NB/T 47023-2012

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