Material: NBR,EPDM,SI,FKM,CR,SBR,IIR,HNBR,ACM,FLS,AFLS ,PU ,etc Best Ring Technology Co., Ltd.(short for LSB) has some year’s experiences in engine accessories, rubber seal and has a comprehensive set of technical solutions. Dedicating to the development and research in engine parts and rubber seals, we are a professional OEM that provide customers with a full range of sealing products.LSB has ...