TieLing ZG Valve Technology Co.,Ltd is professional research,Website:http://www.chinazgvalve.com, development, production and marketing services industry comprehensive ability of valve manufacturers,offers a wide range of products and systems in the filed of valves and piping widely used in environmental water treatment, oil, electricity, chemicals, metallurgy, pharmaceutical, paper, natural gas, urban heating water supply and other industries. Our products can be produced in accordance with GB、HG、AWWA、BS、JIS、DIN and EN standards, we can also design and production of non-standard...