UL（UnderwritersLaboratories）公司是美国最大、经验最丰富的产品安全检验机构之一，UJ，为世界各地民用和商业m达产品制造）～提供’Xu往并且有近一盏年的历史。所检验的设备种芙繁多．其中包括；加热、空调．制冷、烹调、食品加工和制作设备、大小型设施以及上百种其他广品 UL (Underwriters Laboratories), one of the largest and most experienced product safety inspection agencies in the United States, UJ, manufactures civil and commercial products around the world ~ and provides’ Xu to and has nearly a one-year history. The types of equipment tested are numerous. Including; heating, air conditioning. Refrigeration, cooking, food processing and production equipment, large and small facilities and hundreds of other products