需保养 meaning in Chinese

need service

Lqj alumni alloy cable pylon is independently designed and produced by us according to nove 1 - 1979 cable traysystems standard . it has a long life guarantee and easy to maintain with the advantages of simple framework , new style and anti - erosion
自行研制开发的，具有结构简单，式样新颖，耐腐蚀，使用寿命长，安装维护方便，不需保养等特点，能够适用于广泛的环境条件，在沿海盐雾地区