Godrej Locking Solutions & Systems — 3572 godrej grill door lock rust forming regards

Address:

4/236 moolakkadu,thoppur,dharmapuri

Hello sir,
This is k. Mathiyalakan contractor from dharmapuri, tn. I'm doing powergrid projects in various powergrid site locations, the last 2 years i was done the grill door work and i'm using godrej 3572 grill door lock more than 150 pieces that all are good condition, but this time i purchased 18 no's of locks but unfortunately 13 no's of locks forming rust after fixing with in a week, the powergrid officials are not accepting that what can i do sir, after we are cotacting dealer they told its not a big issue just clean with kerosine and use. Here my question is godrej is a very big company their locks are not easily forming with rust here how to form rust in that particular no of pieces i need an reply and solve this issue.

For your reference i attached an photo copy... Please find it.

Thanks& regards,
K. Mathiyalakan,
Contractor,
Dharmapuri, tn.
Mob: [protected]