Jiangsu Lianshui Radio Factory; Huai'an City (Jiangsu, E) 江苏涟水无线电厂:

Jiāng​sū 江苏, trad. 江蘇 or Jiāng​sū​shěng ​江苏省 trad. 江蘇省 (shěng 省 is "province"): The privince Jiangsu (Kiangsu) is in East China (E), abbr. 蘇｜苏. The capital is Nanjing 南京.
Lián​shuǐ ​涟水, trad. 漣水: Lianshui is a county in Huai'an 淮安, Jiangsu.
无线电厂, trad. 無線電廠 (Radio Factory) = Wú​xiàn​diàn ​无线电 = Wireless (we call it Radio, because most used); Chǎng​ 厂 trad. 廠 = Factory (yard / depot / workhouse / works / (industrial).
Huai'an (Chinese: 淮安; pinyin: Huái'ān), known as Huaiyin (Chinese: 淮阴; pinyin: Huáiyīn) before 2001, is a prefecture-level city in northern Jiangsu province, People's Republic of China. It borders Suqian to the northwest, Lianyungang to the north, Yancheng to the east, Yangzhou to the southeast, and the province of Anhui to the southwest. The factory can also be written as 江苏省涟水无线电厂.


Brands:
Dujiang 渡江, English = To cross the river.
Yangzhou Radio Factory also produced the radio for 渡江 brand, but completely different, it is a tube radio, low production, only to historical records, there is no technical information.