Complete range of metric tube connectors made of steel for common outer tube diameters between 4 and 42 mm, based on ISO 8434-1 and DIN 2353: 24° cutting ring fittings, 24° taper fitting with O-ring, 24° weld cones with O-ring and 37° flared tube fitting. Complete accessory range. STAUFF zinc/nickel surface as a delivery standard. Automated assembly machines and wear-resistant tools. STAUFF Form tube forming machine. Independent certificates and approvals for numerous components.