Huntsville is the fourth-largest city in Alabama and the largest city in the five-county Huntsville-Decatur-Albertville, AL Combined Statistical Area, which at the 2013 census estimate had a total population of 683,871.
BLUF. BLUF is an international fraternal organization of gay men and MSM sharing a fetishistic interest in leather breeches and uniforms. The leather breeches are worn inside tall leather boots known as jackboots. BLUF is a part of a larger leather subculture and the sexual aesthetic is similar to the exaggerated masculinity seen in the work of Tom of Finland. Members share interest in leather fetishism, boot fetishism, and uniform fetishism.
Polyvinyl fluoride (PVF) or â(CH 2 CHF) n â is a polymer material mainly used in the flammability-lowering coatings of airplane interiors and photovoltaic module backsheets.It is also used in raincoats and metal sheeting.Polyvinyl fluoride is a thermoplastic fluoropolymer with the repeating vinyl fluoride unit: It is structurally very similar to polyvinyl chloride. PVF has low permeability for vapors, burns very slowly, and has excellent resistance to weathering and staining.It is also resistant to most chemicals, except ketones and esters. It is available as a film in a variety of colors, and formulations for various end uses, and as a resin for specialty coatings.t is also used in raincoats and metal sheeting. Polyvinyl fluoride is a thermoplastic fluoropolymer with the repeating vinyl fluoride unit: It is structurally very similar to polyvinyl chloride. PVF has low permeability for vapors, burns very slowly, and has excellent resistance to weathering and staining.