... , high polished 3.Stainless Steel Tees&carbon steel tees,reducing tees,tee mould specification 1.Material : Stainless steel 304, 3162. Surface: mirror polish, high polished3.Stainless Steel Tees&carbon steel ... strength. ,yield stress ,notched bar impact tenacity, x-ray,metallograph.Quality control: According to ISO 9001 2001 Stainless Steel Tees&carbon steel tees