高精度大规格结晶器管
high precision and large diameter mould pipe
变压器套管
transformer bushing
bushing shell for transformer
transformer condenser bushing
Thansformer
变压器套管瓷套
porcelain shell for transformer bushing
变压器-套管系统
transformer-bushing system
电容式变压器套管
capacitance graded transformer bushing