Metal For D.V.D Box

Metal for d.v.d box mad of iron in metal indurstrise in company. What's thet d.v.d box ? And what's workin purpose for d.v.d box is using for d.v.d ? this d.v.d box is very inportent of logage for sepret electronic box. This's d.v.d box for working and purpose it is very surtese 0of corent and not get outly insulete and surtese of corent and very resk for th working and purpose of the this d.v.d box. This d.v.d box use the where is pootin m.c.b swoich, there is the using of box, this use the box it is not demage of electronic and tulhe to any one man other owich. Therefore it is very inportent in use of d.v.d box. This d.v.d box of model, 3*6, 8*14, adn 8*16 in the box. These d.v.d box 2 step to opening frist opening is the full we can see mcb set and secad opening halfe we can see of the mcb box therefore we can not full opning for the frist step of d.v.d box. The secan step we can opening for any time of swoich dwone and swoich off therefore we can opening secound step opening of d.v.d box. This color of d.v.d box greand, and white for pent of alakatra for the electronic mischine of system. there use by very will of best for the house.