my dear friend,
SRS = Supplementary/Secondary Restraint System
= air cushion restraint system (ACRS)
= Airbag,
in short,
SRS = Airbag. It's not a brand, but a system (just like ABS).
For your reference.
http://en.wikipedia.org/wiki/Airbag
There are many airbag manufacturer in the world, some are from China. Different manufacturer offer different price and of course, different quality.
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Yes, VIOS facelift is another con job, this has been discussed in zth during the launching of Toyota Facelit.