សេចក្តីលម្អិតអំពីគោលការណ៍ការងាររបស់ចិនបញ្ឈប់សន្ទះបិទបើក៖ កាត់ផ្តាច់ ឬភ្ជាប់បណ្តាញរាវ
China stop valve work detail detail: cut off or connect the fluid channel Chinese globe valve is a commonly use fluid control equipment, its work is to realize the control of fluid by shut off or connect the fluid channel. នេះ...
មើលលម្អិត