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China Xi'an Longjoy Foreign Trade Co.,Ltd company news

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Customer Reviews
The manager is beautiful and responsible. She has become my best friend in China.

—— Zyrah

I am very lucky to find you on Google and look forward to our cooperation again.

—— Oliver

wonderful quality and excellent service.

—— Andren

There were a few hiccups in transportation due to COVID-19, but they were all handled well by the manager, and the company is really trustworthy.

—— Bonnie

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Company News
Latest company news about Start work at the end of the holiday

Start work at the end of the holiday

[2022-02-10 17:29:39]
Dear customers, Hello, the Chinese New Year is over and our company has started to work normally this week. At the end of last year, we offered appropriate product prices for some customers. If you have any price or product problems, you are welcome to consult our salesman at any time. Our company ... Read More
Latest company news about What are the differences between neck butt welding flange and neck flat welding flange?

What are the differences between neck butt welding flange and neck flat welding flange?

[2022-01-24 11:26:34]
Different weld methods: radiographic inspection is not allowed for flat welded welds, but for butt welded welds. The welding method of flat welded flange pipe and flange is fillet weld, while the welding method of butt welded flange and pipe is circumferential weld. The nominal pressure is different... Read More
Latest company news about What is the difference between a neck butt welding flange and a neck flat welding flange?

What is the difference between a neck butt welding flange and a neck flat welding flange?

[2022-01-24 11:13:31]
Neck butt welding flange and neck flat welding flange refer to the welding method when connecting flange and pipeline. When welding neck flat welding flange, only one side welding is required, and the inner opening of pipeline and flange connection does not need to be welded. The welding and ... Read More
Latest company news about The difference between ordinary stainless steel flange and high-pressure stainless steel flange

The difference between ordinary stainless steel flange and high-pressure stainless steel flange

[2021-08-06 16:02:22]
The flange is mainly used as an important part of the connection between the pipe and the pipe and is connected to the two ends of the pipe. Two flanges can also be connected because the flanges have holes, bolts can be used to connect the two flanges tightly. However, the functions of flanges of ... Read More
Latest company news about Pressure-temperature rating for flanges

Pressure-temperature rating for flanges

[2021-08-04 15:09:44]
The pressure-temperature rating of the flange refers to the maximum allowable working gauge pressure (pressure unit is Bar) of the material and grade at the rated temperature (degrees Celsius). For the intermediate temperature, the linear interpolation method is allowed to determine. However, it is ... Read More
Latest company news about The pressure rating of the flange

The pressure rating of the flange

[2021-08-01 17:04:00]
According to ASME B16.5, steel flanges have 7 pressure levels: Class150-300-400-600-900-1500-2500. The pressure rating of the flange is very clear. The flange of Class300 can withstand greater pressure than that of Class150 because the flange of Class300 needs to be made with more materials to ... Read More
Latest company news about Stainless steel elbow ready for delivery

Stainless steel elbow ready for delivery

[2021-06-15 17:13:26]
Hello everyone, today is the first working day after the Dragon Boat Festival. In late May, a customer placed a batch of orders for stainless steel elbows for our company. After more than 20 days of production, all the orders have been completed. Through the inspection of professional quality ... Read More
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