AndoRe pipe repair clamps are made entirely of stainless steel A2, AISI 304, EN 1.4301 (with 18% Cr and 10% Ni). Welds are neutralised by an automated welding procedure. Bolts (M12 and M16) are protected against cold welding by special blue coating. The labyrinth seal is made of EPDM rubber according to DIN EN 681.1 and tested according to KTW and W270 standards, for gas pipes NBR rubber is used according to DIN EN 682 standard. Rubber production date is marked on each seal. For protection against damage, dirt and light each clamp is packed individually in a cardboard box with information about installation, product type, pipe diameter and intended use. Each AndoRe pipe repair clamp has a logo of the manufacturer and clamp type stamped on its housing which ensures its origin and quality.