Katter Road

We are ISO 9001:2008 certified company, engaged in manufacturing, exporting and supplying a wide range of surveying and drawing instruments. Our range is designed using quality raw material such as br...

No. 206 Zhencheng Road

Sinoprime Optical Industry Co., Ltd. (SINO-OPTO for short, whose predecessor was Jiangyin Optical Instrument & Materials Co., Ltd.) is one of the leading manufacturers specialized in optical c...