Yongjian three-phase four-wire flat socket 15A/25A Type 86 Yongjian three-phase four-wire flat socket High-power industrial socket 380V socket

Yongjian three-phase four-wire flat socket 15A 25A Yongjian three-phase four-wire plug socket High-power four-hole round industrial socket 380V socket

Yongjian three-phase four-wire socket 15A 20A 30A (4pcs/box) Yongjian three-phase four-wire plug socket High-power four-hole round industrial socket 380V socket