[ heavy survivor mask can be crafted with the following recipes

Autolearned
Player Recipe
Primary skill used: fabrication(7)
Required skills: tailor(7)
Time to complete: 0.2 turns
Tools required:
> 1 tool with cutting quality of 1
> welder (56 charges) OR makeshift welder (84 charges) OR soldering iron (84 charges) OR integrated toolset (84 charges)
Components required:
> 2x filter mask OR 1x gas mask OR 1x firefighter PBA mask
> 2x pair of safety glasses OR 1x pair of ballistic glasses
> 3x scrap metal
> 1x ballistic mask OR 4x Kevlar plate
> 25x duct tape OR 1x superglue OR 1x bone glue
Byproducts:
(none)