欧洲专线一区二区三区,无码日日模日日碰夜夜爽,欧美一区二区三区放荡人妇,国内精品久久久久久中文字幕,欧美牲交A欧美牲交AⅤ免费真,久久青草免费线观最新,日韩人妻无码精品—专区,99精品国产一区二区三区不卡 ,国产一区二区精品久久不卡,久久久精品中文字幕乱码18

35kV series oil-immersed power transformers are relatively advanced in design, and have been greatly improved and improved in material, structure and process. The high and low pressure clamps are tightened by steel straps or upper beams and side beams to form a solid frame structure, which enhances t…

The S11-M series fully-sealed oil-immersed power transformer developed and produced by our company has the advantages of low loss, low noise and high efficiency, which can achieve good energy saving effect and reduce pollution.

S13 type is based on the original S11 distribution transformer, through the research and application of new materials and new processes and the combination of independent innovation and technology introduction, through the optimization and innovative design of the core and coil structure, to reduce n…