Flexible Rising Main for water well installation, polyester and thermoplastic elastomer composite, "Angus Wellmaster", 2 inch nominal internal diameter by 5 inch specimen length, by Angus Fire Armour Ltd., Thame, Oxfordshire, 1985
Flexible Rising Main for water well installation, polyester and thermoplastic elastomer composite, "Angus Wellmaster", 2 inch nominal internal diameter by 5 inch specimen length, by Angus Fire Armour Ltd., Thame, Oxfordshire, 1985