Great Silver Pack (Shenzhen) Co., Ltd head office in Hongkong, established in 1993, it is located alongside the beautiful Shiyan Lake Vacation. Resort in GuangMing New District, Shenzhen, China. 20 minutes journey to Shenzhen International Airport. We are one of the largest professional manufacturers producing polyolefin shrink film in China. And the first biggest maker in south China who owns more than 19 years experience in manufacturing shrink packaging materials.