TANGSHAN, ZIBO, SHANDONG, China

Founded in 1987, Shandong Dongyue Chemical Co., Ltd had become the biggest environment friendly refrigerant base in the world. The main product include: R22, R134a, R404a, R142b, R152a, R406a, R507c, ...

refrigerant gasR134a,R143a, R404a, R406a, R407c,etc...

Yujing Building, Xiwu Road

Jinan Guantong is a professional company engaged in refrigerant gas and PTFE product. Our factory is the biggest refrigerant gas company in north China. The main products include R22, R32, R125, R134...

No. 8, Nanying Road, High-Tech Zone

Shandong Zongyoung Chemical Trade Co.,LTD specialized in Eco-friendly refrigerants , PTFE ,PVDF new material,Cyclodextrin and derivatives .Mainly products include R134A ,R410A, R404a,PTFE ,PVDF resin...