For Russian process piping projects that combine standard ASME specifications and strict dimensional controls, consistent wall thickness on formed elbows is a frequent pain point. Haihao Group recently finished inspection and shipment of a batch of seamles ...

Haihao Group has finished production, inspection and shipment of stainless steel tees for a Malaysian process piping client. This batch covers equal and reducing tees in grade 304, SCH10S wall thickness, ranging from 250×250 down to 125×40, to accommodate ...

Haihao Group has completed inspection and shipment of ASTM A860 WPHY reducing tees for an energy project in the UAE. This order combines two material grades, WPHY 52 and WPHY 65, with sizes 6″×3″ and 4″×2″, all manufactured to ASME ...

Haihao Group has completed manufacturing, dimensional inspection and shipment of a set of BS EN 10253-2 Type B 1.0453 reducers and tees for our Singapore client. This batch includes concentric reducers, eccentric reducers, equal tees and reducing tees, all ...

Haihao Group has completed fabrication, final inspection and packing of a mixed set of BS EN 10253-2 1.0453 pipe fittings for our Singapore customer. This batch includes equal tees, reducing tees, concentric reducers and eccentric reducers, sized to match ...

Haihao Group has finished forming, back-wall thickness verification and documentation collation for a batch of ASME B16.9 A234 WP22 CL1 seamless butt weld fittings, ready for shipment to our Singapore petrochemical client. This package gathers long radius ...

Haihao Group has completed production, dimensional inspection and surface coating for a full package of carbon steel pipe fittings, ready for delivery to our Switzerland client. This batch covers elbows, concentric reducers, tees, caps and dished ends, all ...

Northern Russian pipeline sites place strict demands on material toughness, especially for fittings that must hold stable mechanical performance under sustained cold operating conditions. Haihao Group recently wrapped production and shipment of a matched s ...

Haihao Group has recently wrapped up fabrication and shipment of a batch of heavy-wall butt weld pipe fittings for a Russian pipeline customer. This set of fittings is built from A420 Gr. WPL6 low-temperature carbon steel and fully follows ASME B16.9 dimen ...

Large stainless piping projects in Russia often require two distinct fitting grades on a single order — super duplex for chloride-sensitive zones and standard 304 for general corrosive service. Haihao Group has completed production and shipment of EN 10253 ...

Sour gas piping projects in Singapore demand small forged threaded fittings that meet strict material verification and non-destructive testing rules, even for simple components like flange tapping plugs. Haihao Group recently completed production and shipm ...

Proper flange bolting is essential to maintain leak-free connections on oil and gas piping systems, and matching stud bolt and heavy hex nut assemblies are critical for Venezuela’s energy site construction. Haihao Group has completed inspection and s ...

Long-distance transmission pipelines across the United States often demand high-strength butt-weld reducers capable of maintaining toughness in cold operating environments. Haihao Group has completed production and shipment of ASTM A860 WPHY60 ASME B16.9 c ...

Sour hydrocarbon processing facilities in the UAE demand pipe bends that can withstand corrosive fluid while maintaining low-temperature impact toughness. Haihao Group completed production and shipment of A815 S31803 seamless LR 90 degree elbow for an Emir ...

Sourcing mixed batches of butt weld fittings across multiple sizes and schedules often creates lead time and consistency risks for pipeline construction projects in Pakistan. Haihao Group has completed fabrication, inspection and shipment of a complete pac ...

Haihao Group recently completed fabrication and shipment of seamless long radius elbows for a piping client in Latvia. This batch of pipe elbows follows  technical specification ТУ У 24.2-13419172-005-2014 with geometry requirements complying with GOST 173 ...

Industrial piping projects in Latvia often require large diameter welded elbows with controlled chemical composition to fit layout constraints for process and utility pipelines. Haihao Group has completed fabrication and shipment of large-size A516 Gr70 we ...

Industrial piping systems operating in Russia’s varied operating environments often require stainless steel fittings with dual-grade 304/304L composition to balance corrosion resistance and weldability. Haihao Group has completed fabrication, full in ...

Process piping installations in Russia often require matched sets of stainless steel buttweld fittings to handle corrosive process media. Haihao Group has finished manufacturing and shipment of A403 WP304/304L seamless fitting packages for a Russian indust ...

Industrial piping systems deployed in sour hydrocarbon environments demand rigorous material stability and anti-corrosion performance. Haihao Group has successfully delivered a full batch of custom butt-weld pipe fittings tailored to strict NACE and AXENS ...