ASIMCO Shuanghuan Piston Ring obtains European patent for piston ring coating technology [ EU ] 
[ China ] 
ASIMCO Shuanghuan Piston Ring Co., Ltd. (Yizheng), a subsidiary of ASIMCO Technologies Limited, announced that its Physical Vapor Deposition (PVD) multilayer hard-coating technology for piston ring...
<Dec 22, 2016>
