News

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...

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...

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...