Hoisin is often referred to as Chinese barbecue sauce, not because it has a similar flavor, but because it is used for a variety of purposes, similar to American barbecue sauce. Hoisin is also sometimes referred to as Peking sauce because it is used to create the thick glaze on the popular dish, Peking duck.
Balusters, the vertical guards that support the handrail, must be installed close enough that the space between them is no greater than 4 inches. Most city inspectors carry a 4-inch ball with them to test the spacing. Installed balusters should withstand 50 lbs. of pressure exerted over a 1-square-foot area.
If balusters are used, there shall be a minimum of one per tread. Handrails shall be a minimum of 1 1/4 inches (3.18 cm) in outside diameter; and (5) Vertical clearance shall be at least 6 feet, 6 inches (1.98 m) above the top step. (c) Maintenance. Spiral stairways shall be maintained in safe condition.f) If the foot of a gangway is more than one foot (0.30 m) away from the edge of the apron, the space between them shall be bridged by a firm walkway equipped with a hand rail with a minimum height of approximately 33 inches (0.84 m) with midrails on both sides.