外层胶 meaning in English

cover compound
cover rubber
final outer rubber cover

Outer inner rubber
内外层胶
This product consists of rubber pipe made of inner glue , multi - layer proofing cord fabric and outer glue and metal woggle joint . it has features such as good pressure resistance , good flexibility , great deflexion displacement , aging resistence and excellent shock absorption etc . it is applilcable for the connection of inlet and ourlet pipes of various fan coil sets of air conditionings in the guest rooms of hotels and restaurants
该产品由内胶层多层尼帘子布增强外层胶构成的橡胶管和金属活接头组成。具有耐压高，弹性好偏转位移量大耐老化吸震好等特点，适用于宾馆饭店客房的空调用各种风机盘管机组的进出口管道连接。