Punching groove dish head with handhole and manhole:  

hole: we need your drawing about the hole .

Material:carbon steel , stainless steel , and clad with many kinds of grade.

specification:

Standard:GB/T25198-2010 

Technics:Forging

Processing:hot mould pressing,cold mould pressing,cold spinning

Appearance treatment:sandy-blasting , acid pickling,antirust treatment...

NDT:ultrasonic testing,Radiographic testing,Magnetic Testing, Penetrant testing

Groove:it can be groove in , groove outside ,and both , according to your drawing.

Testing:no destructive(UT,PT,MT,RT)

License:

Application:our products can be used in oil and gas industry, chemical plant, electric  power, smelting water control.food machinery and ship building ,boiler heat exchanger,medical equipment,petroleum industry,aerospace  industry. 

Please pay attention: 

No cracks , delamination, inclusion ,and other defects

 If you are interested in our products,please contact us!