Sejiny General Contracting Co.

ISO 9001  ·  ISO 14001  ·  ISO 45001

47+

200+

1978

2nd

Civil and architectural works
01

Electromechanical MEP installations
02

Asphalt and road works
03

·

·

CEER

MBL

·

·

··

ISO 9001:2015
ISO 14001:2015
ISO 45001:2018