Storing

Cutting

Induction heating

Piercing

Broaching

Ultrasonic inspection

Squaring up

Neck forming

Squaring up and preboring

Heat treatment

Outside grit blasing¡¡

Identification

Hardness testing

Neck machining and threading

Thread inspection

Inside cleaning

Volume measurement

Hydraulic testing¡¡

Drying

Pressing-in of the neck ring

Weighing and marking

Inside grit blasing

Visual inspection¡¡

Ultrasonic inspection¡¡

Outside grit blasing

Overall inspection¡¡

Primer anticorosion painting

Drying

Top painting

Drying

Color marking

Equipment assembly

Final insepction

Packing

Expedition