Kwesịrị ekwesị maka iji na IIA, IIB, ihe nkiri IIC na-agbawa mpaghara mpaghara gas1 na mpaghara2.
Ọkpụkpụ nke IIIA, IIIIB, III Mpaghara 21 na Mpaghara 22
Ex-Mak:
Ex db IIC GB, ỌP TB IIIIC DB.
Arex. Mba. :Sev 20 ATEX 0471 U
Cert iex. Mba .: iecex Ser Sen 20.0016U