Our assortment 1. Weld-on connector pipes with single-sided thread made from: – seamless carbon steel pipes (size 1/8″ – 4″)– seamed carbon steel pipes (size 1/8″ – 4″) – galvanized pipes (size 1/2″ – 4″)– stainless– length 30 mm – 6000 mm (typical is 60 mm – 250 mm) 2. Weld-on connector pipes with double-sided thread made from:– seamless carbon steel pipes (size 1/8″ – 4″)– seamed carbon steel pipes (size 1/8″ – 4″) – galvanized pipes (size 1/2″ – 4″)– stainless– length 30 mm – 6000 mm 3. Weld-on carbon steel couplings– seamless carbon steel pipes– stainless– size 1/8″ – 4″ – length 15 mm – 200 mm Apart from pipes of standard length and thickness we also make unconventional threads at customer’s request. In addition, we thread pipes of any material of the customer’s choosing.