Tender For corrigendum : supply of steel doors and access hatches - 1. wt gt doors as per ncd 1447 , 2. wt gt doors as per ncd 1447 , 3. wt gt doors as per ncd 1447 , 4. wt gt doors as per ncd 1447 , 5. wt gt doors as per ncd 1447 , 1. a60 fire rated steel doors as per imo,a 754 , 2. a60 fire rated steel doors as per imo,a 754 , 3. a60 fire rated steel doors as per imo,a 754 , 4. a60 fire rated steel doors as per imo,a 754 , 5. a60 fire rated steel doors as per imo,a 754 , 1. wt access hatches as per ncd 1448 , 2. wt access hatches as per ncd 1448 , 3. wt access hatches as per ncd 1448 , 4. wt access hatches as per ncd 1448 , 5. wt access hatches as per ncd 1448