opTech Ltd. was founded in Beijing, the capital and main transportation city in China.
With more than 10 years experience in welding and cutting industry, we had R&D our advanced welding and cutting equipment.
Mature teams, included sales team, marketing team, production team and after-service team, supply professional service for customers.
Strictly follow ISO 9001:2000 world quality management system.
TopTech Ltd. factories are located in Beijing and Tangshan.
In order to have professional products line, each factory has specificity producing department, testing department.