A guarantee items:
1.1 wooden handrail and bend wood species and moisture content of the material must meet the design requirements and the " wood frame construction and acceptance of norms " (GBJ206-83) requirements.
1.2 Selection of plastic handrail support should match the material shape, size should meet the design requirements.
1.3 fixed armrests embedded parts ( wooden tiles or iron ) must be firm , not loose , into the wall of the wooden handrail should be done embalmed.
Two basic items :
2.1 Production : Size correct , smooth, straight lines , curves, arcs along the surface , flute angle Founder, no closure Croucher , planing marks, hammer India and other defects.
2.2 Installation: correct position, cut moldings accurate, neat, tight joints , consistent slope, firmly bonded, smooth , nuts Euparagonimus unanimously out of the wall size.
2.3 plastic handrails should be no split .
3 Tolerance project , see Table 9-49
Stair handrail installation tolerances Table 9-49
Item Project Tolerance (mm) inspection methods
A railing ( board ) the amount of vertical feet hanging line 2 checks
2 baluster spacing of 3 feet to check the amount of
3 armrest longitudinal bending amount of 4 -foot pull-through line inspection
4 handrail elbow and check the amount of size 3 feet
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