seat of the union 中文意思是什麼
seat of the union
解釋
電聯總部-
Gravity ball check valves are converted to foot valves by replacing the union nut and end connector on the receiving end ? seat end ? of the body with an f. v. screen housing assembly
重力球形止回閥可以變為底閥,只需在接受埠-閥體的閥座埠,用一個f . v .濾網殼組件更換管接頭螺母和埠連接件即可。 -
Our company, one of the largest manufacturing foundations of valve seat, valve rocker and valve guide in china, has exported products to several developed countries such as america, canada and the europe union
我公司從一九八九年起,氣門座氣門搖臂氣門導管長期出口美國加拿大歐盟等發達國家。
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