搜尋結果
Product Introduction The clamp type metal sealed butterfly valve is a three eccentric structure metal sealed butterfly valve developed by our factory. This product has the characteristics of safety and reliability, small flow resistance coefficient, high temperature ...
Rigao Holdings Group Co., Ltd. is located in Taizhou City, Zhejiang Province. Our company is committed to the production and sales of supporting valves in industries such as power, chemical, metallurgical, sewage treatment, gas purification, pneumatic conveying, and material conveying, achieving technological, energy-saving, and environmentally friendly goals. ...
Rigao Holdings Group Co., Ltd. is located in Taizhou City, Zhejiang Province. Our company is committed to the production and sales of supporting valves in industries such as power, chemical, metallurgical, sewage treatment, gas purification, pneumatic conveying, and material conveying, achieving technological, energy-saving, and environmentally friendly goals. ...
Rigao Holdings Group Co., Ltd. is located in Taizhou City, Zhejiang Province. Our company is committed to the production and sales of supporting valves in industries such as power, chemical, metallurgical, sewage treatment, gas purification, pneumatic conveying, and material conveying, achieving technological, energy-saving, and environmentally friendly goals. ...
阀板与阀座之间加载弹簧，弹簧弹力始终使阀板压向阀座保证阀门的密封性，又容许阀板在垂直上下方向移动，这有助于补偿阀门零件的热胀冷缩，并能克服任何背压变化对密封的影响与防止颗粒介质进入两密封面之间。
Electric open and closed plug-in valve
Electric open and closed plug-in valve
一直放屁原因 大腸癌 相關
廣告過去一個月已有 超過 1 萬 位使用者造訪過 coreanclinic.url.tw
由前台中榮總大腸直腸外科醫師主持。
