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Our company's progress statement on responding to 337 investigation cases

2022-04-04
Status ReportOn November 20th,2020, US Synthetic Corporation (“USS”) requested that the United StatesInternational Trade Commission commence an investigation (“ITC investigation”)against, among oth...

2019 OTC Petroleum Exhibition in the United States

2019-05-24
American International Oil and Gas Exhibition (Offshore Technology Conference) referred to as: (OTC) exhibition was established in 1969, an annual...

2019 Russia NEFTEGAZ Exhibition

2019-04-24
From April 16 to 19, 2019, the 2019 Russian International Oil and Gas Equipment and Technology Exhibition (NEFTEGAZ 2019) was held in Russia...

2018 Wanlong Group “Excellent Wanlong employee” Huangshan Mountain Tourism Activities.

2018-10-30
2018 Wanlong Group “Excellent Wanlong employee” Huangshan Mountain Tourism Activities.In order to enrich the cultural life of employees, strengthen the construction of corporate culture, On October...

Wanlong group Mid-autumn Festival

2018-10-08
Wanlong group Mid-autumn Festival The Mid-Autumn Festival is a traditional festival of the China. On the occasion of the Mid-Autumn Festival, all the colleagues of the company gathered on the afte...

Three properties of polycrystalline diamond compacts

2018-09-06
When talking about the properties of PDC composite sheets, people often talk about its three major properties, namely abrasion resistance, impact resistance and thermal stability. In the actual drilli

2018 Wanlong group parent-child activities

2018-08-28
2018 Wanlong group parent-child activitiesClose to nature, happy parent-child tourOn August 18, 2018, Wanlong Group held a parent-child activity. The children of 144 employees from 119 families of ...

Performance test method of PDC composite sheet

2017-04-07
In order to ensure the quality and stability of PDC composite sheets, PDC manufacturers must not only strictly implement the quality inspection of raw materials and control the production process, but

Polymerization principle of polycrystalline diamond compacts

2017-04-06
Polycrystalline diamond compact (PDC compact) is a superhard material in which synthetic diamond particles and cemented carbide matrix are polymerized under high temperature and high pressure...