Kedu ngwa a na-eji Alloy 20?
- Ngwa mmepụta rọba sịntetik
- Nhazi nke ọgwụ, plastik na organic na kemịkalụ dị arọ
- Tankị, ọkpọkọ, ndị na-agbanwe ọkụ, nfuli, valvụ, na akụrụngwa nhazi ndị ọzọ
- Acid nhicha na pickling akụrụngwa
- Chemical usoro ọkpọkọ, reactor arịa
- Okpu afụ
- Ngwá ọrụ usoro Petrochemical
- Nri na ihe eji esiji eme ihe
Oge nzipu: Ọgọst-12-2020