Dear Team we purchase SS316 IP66 Waterproof junction boxes on regular and in saudi we cater to the needs of Panel builders and other people from Oil And Gas Industry. 
Please quote us your best possible so we can plan to build a long term relationship starting with the purchase of these enclosures. 
I have mentioned the sizes we purchase and also the sizes we are currently looking for. 
300x300x200 IP66 WATERPROOF ENCLOSURE SS316L - 50 PCS
500X400X200 IP66 WATERPROOF ENCLOSURE SS316L - 20 PCS
600X500X200 IP66 WATERPROOF ENCLOSURE SS316L - 75 PCS
900X600X200 IP66 WATERPROOF ENCLOSURE SS316L - 10 PCS
300X300X200 IP66 WATERPROOF ENCLOSURE SS316L MIRROR FINISH - 20 PCS
WE HOPE TO RECEIVE THE BEST PRICE FROM YOUR SIDE