... BKS, GBK, NBK, Stress Relief, Normalizing, Spheroidize Anneal, Annealing, Bright Annealing, Normalized, Quenched and Tempered, Solution Annealing, etc; 4) ... on both ends as required; 7) Packing Type: Round, Square, Rectangle, Hexagon. Streamline, etc. 8) Relevant Test: Chemical ... : 20' or 40', etc; 8) Manufacture methods: Cold Finished and Hot Finished. St35.8 / St52 Seamless Boiler Steel Tubes