Question about electrical atlas, service life.

"Plumbing and Equipment Installation Engineering Atlas - 88D369 Electrical Equipment Installation on Light Steel Stud Partition Walls and Suspended Ceilings (pdf 36)"

New TJ1998-05 Commonly Used Electrical Equipment Installation (Combined Book) Includes D(v) 90SD180\95D211\90D367\88D369\96SD469\90D763\ 85SD766 (I) (II) \99SD767, 383 pages, 90.00 yuan 2, this

Download URL:/zltx-1/tuji.doc

But "TJ" do not know which atlas