صمام فراشة متحد المركز مزدوج الساق من نوع الرقاقة مع مقعد ناعم

we have our own pipe fitting factory since 1998 ,which covers 100 acres. In 1998, we invested and set up a new flange factory. Up to now, we have a complete production system, and become a professional and competitive group in this field.