Looks brand, Custer (certified), ladder provided by Shenzhen Logistics Equipment Co., Custer. Shenzhen Custer Logistics Equipment Co. (www.szcaster.com) is specialized in "casters, forklifts, aluminum ladders, aerial platform" of the enterprise, the company of "honesty, hard service" concept, to provide you with the most quality products and services. Welcome to inquire! Contact: Iso. The company supplies wholesale all kinds of high-grade ladder. Insulated ladders, insulation co-ladder ladder, extension ladder, such as aluminum ladder insulation, high ladder five Jin Tizi macro, household ladder, industrial ladder, lift sub lift ladders methods of operation, one word lifts, lift platforms everyday life tool, by two doing long thick root pole, across the middle of the bar for climbing, for climbing. Name: Ladder Pinyin: tī zi phonetic: ㄊ ㄧ ˙ ㄗ ㄧ English: ladder phonetic: [English] [US] ◎ ladder tīzi (1) [Stair; Ladder] [l d???] [L d???] : by doing two long thick pole in the middle ... a cross, if you need to use a ladder, you must select the appropriate ladder lightweight ladders basically divided into two categories, one straight ladder (straightladder), one person ladder (stepladder). Ladders can not stand alone, must be against the fixture, the US Occupational Safety and Health Department regulations ladders must be higher than the top of the length of the desire to reach the level (Special Note 3 feet of the ladder: feet) 91 cm or more, often referred to as super stretch, super stretch main purpose is to make the center of gravity to the fixture near vertical ladder, ladders and down when people are less likely to tip over. But if ladders unable to meet the requirements, then look hyperextended brand, the top ladder shall be fixed, and the ladder should be equipped with devices or help grab the handrail to provide staff with the ladder at the top and bottom to maintain three points of contact at all times (ie, feet and handedly).