Shandong Landun Petroleum Resins Co., Ltd.

[ Manufacturer ]Main business are Petroleum resin, Hydrocarbon resin

Qingdao Hongfeng High Energy Welding And Cutting Gas Co., Ltd.

[ Manufacturer Trader ]Main business are Liquid hydrocarbon

Zibo Zhanglin Petrochemical Co., Ltd.

[ Trader ]Main business are Petrochemical product

Zibo Linzi Zequan Chemical Co., Ltd.

[ Manufacturer Trader ]Main business are Solvent products