... "(DN15-DN600). Standard:ANSI, ASTM,MSS, JIS,DIN,EN Type Tee Size1/2"- 48"Wall thicknessSch 10- Sch xxsApplicable standardASME , ASTM ... WPB ANSI B16.9ConnectionButt-weldingApplications rangsuch as oil, chemical industry, water conservancy, electric power, boiler, machinery, metallurgy, sanitary construction etc.QualityISO9001 ...