KG.GSR is the expert in producing solenoid values in Germany, exploitation of gas cut-off valve maikes great contribution to gas facility in China.是什么意思_KG.GSR is the expert in producing solenoid values in Germany, exploitation of gas cut-off valve maikes great contribution to gas facility in China.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句