coverer

Coverer: Seamless sheath of ether-based urethane resistant to cathodic, hydraulic and other environmental conditions.

包层：无缝铠装乙醚基氨基甲酸乙酯。耐阴极、液压和其它环境条件。

c. Cover use of closed Coverer, good for resolving environmental outdoor operation under adverse conditions of the dust pollution problem.

五、油采用特种进，精度，强劲，伸缩自如。