1.standard:ANSI,B16.5,JIS B2220,DIN2573 2.size 1/2"-72" 3.wall thickness:SCH10~SCH160/STD/SGP/XS/XXS 4.ISO9001-2000/ CE/API Dear Sir/Madam, This is Serina Qi from Zhengzhou Wanda Pipe-fitting Manufacturing Co.,LTD, we are the experienced manufacture who was specialized in producing all kinds pipe fitting. Welcome your visit and cooperation! Thanks very much! Best regards Company Zhengzhou Wanda ...