BOYER L'HERMETIQUE DE REFERENCE

covers and frames for pressurized and non-pressurized manholes and manways, made of stainless steel and/or soft steel, to be welded or to be sealed; metal reinforcements for ducts, for doors or for windows; doors with clamps, round, oval, and rectangular outer bulkhead doors furnished with a sealing closure made of stainless steel and/or soft steel; metal traps and trap doors in the nature of building structures equipped with a sealing closure, metal grates, metal doors to be sealed, metal closures for containers, metal gates