TOBO ALLOY GROUP TOBO Alloy Group is a mature, steady and energetic high-tech company, specializing in manufacture of high-temperature alloys and corrosion resistant alloys, such as Hastelloy, Haynes,
Steel Carbon Seamless API 5L Pipe Black ASTM A 192 12inch Sch10 for oil and gas Specifications Standard: API, ASTM, BS, GB Standard2: API 5L, ASTM A53...