1. Material : C.S; S.S; ALLOY STEEL 2. Outside diameter :1/2"-72" 3.Wall thickness :Sch SGP-XXS 4. Certificate : CE , ISO 1.name: Y tee 2.Size:From 1/2" to 48" (Seamless pipe fittings). From 26" to 72" (Seam pipe fittings)3.Wall thickness: Sch5-Sch160,XXS4.Standard: ISO, SNSI, JIS, DIN, GB/T12459,GB/T13401,ASME B16.9.SH3408 SH3409, HG/T21635,HG/T21631,SY/T050105.Material: A234-WPB.A420-WPL6.A234- ...