Help the old to stand up recliner sofa mechanism for the old

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Benefits:

Strength ,durability ,and Safety.
Maximum safety and comfort 
Consistent and easy operation for any person.
Ease of operation & comfort.
Maximum synchronization of sides Positive locking of both sides.
Greater bending resistance.
Greater stability and strength .
Reduced wear and increased durability.
Reduced noise.

1. The ottoman adopts the design of wide  heavy gauge links and built-in
       articulating  elevated  mid-ottoman.  Profile shape designed for safety
       and appearance without pinch points.  Articulating designs allows use
       of wider&higher mid-ottoman for  elimination of entrapment areas and
       for leg support.
   2. The system adopts the geometrically  engineering theory. The occupant
       can  change  from  the  sitting  position  to  reclining  position  at  any
       position as he want to.
   3. The system  uses locking  devices on  both side  brackets. It enables
       maximum  synchronization  of side  positive  locking  of both  sides.
       Ottoman is locked closed on both sides.
   4. The system has a maximum reclining angle which is good for super-heavy
       occupant.  The mechanism   base  width is  closer to  seat  width while
       maintaining  sufficient  clearance  between  links  to  eliminate possibility
        of interference.
   5. Use  the  slippery  proof  nut  to  fix the  stabilizer tube.  Set  up  the
       maximum strength stability and is side to side.It eliminates problems
       with flexing and breaking of tubes end at bend under big torque. 
   6. Large diameter stabilizer tubes  with both  ends flattened are used to
       obtain the maximum strength, side to side stability and torque control.
       Unique design of flattened tube end maximizes tensional strength unlike
       non-tubular cross members which have no significant tensional strength.
   7. The system uses the extended life rivet joints design. All rivet joints
       have either  acetal or  bronze  rivet  bushing and  acetal  spacers to
       eliminate  any steel  to steel  contact. No metal to metal noises when
       links contact nylon stop pins.