Reducing Tee-------------StandardGB/T12459, GB/T13401,SH3408, SH3409,HG/T21635 ,HG/T21631 ,ASME B16.9, MSS SP-43 , DIN 2615,JIS B2313 SizeSeamless Fittings 1/2-16(DN15-DN400); Welded Fittings1/2-48(DN15-DN1200)Wall Thickness: SCH5S-SCH160MaterialStai