Ụlọ ọrụ Chang Song Electric Co., Ltd. E hiwere ya na 1995, ya na ihe karịrị ụlọ ọrụ mmepụta ihe karịrị 35000M2, ndị ọrụ 260, ọ ghọrọ otu n'ime ụlọ ọrụ mmepụta ihe eletriki kachasị elu na China. Na mgbakwunye na otu n'ime ụlọ ọrụ mmepụta ihe mbụ nwere ahụmịhe ihe fọrọ nke nta ka ọ bụrụ afọ 20 n'ịmepụta na imepụta ngwa eletriki.

Chang Song Electric Co., Ltd. Emepụtala ma mepụta ụdị dị iche iche na ngwaahịa eletriki ụlọ ọrụ mmepụta ihe nke gụnyere: Circuit Breakers, Panel Boards, AC contactors, Mita, Relays, Fuses, Control Units… Tinyere ọtụtụ ngwa eletriki ndị ọzọ dịka ọkụ LED.

Ụlọ ọrụ Changsong Cowns nke na-emepụta ngwa eletriki ọgbara ọhụrụ, nke nwere ọtụtụ ihe eji akpụzi ngwa dị elu, akụrụngwa mmepụta na nkwado teknụzụ dị elu, tinyere ike imewe dị elu nke ndị otu injinia klaasị mbụ na sistemụ kọmputa ụlọ ọrụ mmepụta ihe dị elu na-akwado. Ya mere, ngwaahịa ọ bụla nwere ezigbo mma, imewe sayensị na nke ọhụrụ yana ọrụ aka dị mma.

Changsong nwetara asambodo sistemụ mma ISO9001, ISO14001, OHSAS18001, asambodo CB; asambodo SEMKO na CE, wdg. O doro anya na a na-anabata ngwaahịa ndị ahụ nke ọma ọ bụghị naanị n'ime obodo kamakwa n'ahịa mba ofesi kwa afọ.

Iji mee ka ndị isi na ụlọ ọrụ eletriki dịgide, Changsong na-abawanye ma na-emelite ụlọ ọrụ mmepụta ihe mgbe niile, na-eme ka usoro ndị a ka mma ma na-anabata ngwa nyocha kachasị elu iji weta ngwaahịa anyị n'ọkwa dị elu yana ọrụ nnyefe zuru oke na ngwa ngwa.