cate the head),mm；H—Hemispherical head total depth,mm；Packaging DetailsCarbon Steel hemispherical End Cap Dished Ends Pressure Vessel Heads 1. Iron fram 2. Wooden Box 3. Iron pallet 4. Wooden pallet5. Professional fixation 6. Customized requirement Surface Treatment：1. Intermediate 2. Sand / Shot Blasting after Heat Treatment;3. Weld Edge Preparation (Manual & Machined)If you like our stainless steel head,elliptical Head, spherical head, dished head, flat bottom vessel head...welcome