Henan Shenlong Petroleum Drilling Tools Co.,Ltd

Non-Destructive Examination

All materials in Shenlong’s facility have been examined for both surface and internal defects.

Ultrasonic Tests are utilized through the entire process. Material coming into factory, after heat-treated (or forging), finished products, there are at least 3 times of Ultrasonic Tests for each products.

Magnetic Particle Examination has been performed to detect surface defects and thread defects. 

Employees who perform NDE have valid Level II certificate.