Several days ago we were praised by one of our old client.He told me that our good packing makes them save about 20,000USD and we are best supplier.At first,I don’t know how could 20,000USD come out a...

As is known to all, China is the world’s most important exporter of steel pipes, fittings, flanges and related products. Many countries have a large demand for steel pipes and accessories in inf...

Pipelines are used to transport and distribute oil,gas,chemicals,water,steam,petroleum products and other substances are of critical significance for the economy.But the pipelines are severely endange...

260 aluminum alloy plates were transported from our company to Malaysia. The aluminum alloy ship plates for this shipment are 5A02 marine aluminum plates, 4 * 1200 * 6000mm, and 5A02 aluminum plates a...

The specification of seamless steel pipe in ocean is expressed by millimeter number of outer diameter * wall thickness. Seamless steel pipe can be divided into hot-rolled seamless steel pipe and cold-...

Before installing the insulated joint, we need to inspect the whole installation environment, and then determine the specific installation location. The installation position of the insulation joint i...

Do you know pipe spools?
The prefabricated components of a piping system are called pipe spools. They include the pipes, flanges and fittings, and they are mounted during the fabrication before they a...

Hebei Haihao group can offer the shipbuilding steel plate with ABS and BV certificate .
Higher-strength steel grades certified for use in shipbuilding capacities.
Available in four ordinary-strength g...

We are Hebei Haihao Group (HH) , We can provide DH36 shipbuilding steel plate with ABS ,BV certificate .
The steel for shipbuilding and oil platform—DH36, is the high tensile strength steel. The...

Our customer from Indonesia came to our factory for product inspection. It was the second time for him coming here. For the first time he visited our factory and placed an order immediately.
Customer ...

Metal hose consists of three parts: bellows, mesh sleeve and joint. The bellows is the body of the metal hose, which plays a flexible role; the mesh sleeve plays a role of strengthening and shielding;...

Haihao Group’s products are of high quality and reasonable price,enjoying a high reputation in the market. So customers will prefer us.Two months ago, a new customer in Spain finally chose us an...

17th ,Dec 2019 three customers came to visit our factory.
Iran customer visited Haihao Group
We introduced our flange producing line and fitting producing line, from raw material to finished product ,...

Hebei Haihao High Pressure Flange & Pipe Fitting Group was established in 1982, located in Mengcun County—the hometown of pipe fittings in China. We are the first and one of the biggest companies ...

The forging process of flange can be divided into hot forging and cold forging. The differences are as follows:
In the hot forging of flange, the large flange with complex shape can be forged due to t...

Pipeline is a device which is connected by pipes, pipe connectors and valves to transport gas,liquid or fluid with solid particles.Generally,after pressurized by blowers,compressors,pumps and boilers,...

The marine standard flange is used for the flange on the ship. The flange is the part that makes the pipe and the pipe connect with each other. Connect to pipe end. There are holes on the flange, and ...

Press forging may be defined as the process of shaping a metal that is placed between two dies by applying mechanical pressure or hydraulic pressure. Press forging is usually done on a forge press-a m...