ADDN/ ALTRN AND SPECIAL REPAIR TO COVER SHED NEAR BLDG NO P-10, P-75 AND P-170 AT NAUSENA BAUGH, PROVN OF COVER REFUSE BINS, AND COVER SHED AND HARD STANDING NEAR BLDG P-119 AND P-120AND REPLACEMENT OF OVER HEAD TANKS OF CERTAIN BUILDINGS AT INS HAML (投標 №116987408cn)