Aug. 12, 2022
First of all, after the arrival of raw materials, we check the chemical composition of the seamless steel pipe, the surface quality and size.
After the cylinders are tempered, the cylinders should be stacked for tensile test, impact test and burst test.
In the machining process, hydraulic test, hardness test, ultrasonic and magnetic particle inspection are also required.
Final air tightness test
Guarantee our cylinders meet the corresponding standards.
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