Strict quality control, success is not the least bit poor Handle King Industrial Co., Ltd. has developed a set of strict inspection standards according to ISO international standards, and looks at all stages from the inspection of raw materials, to production, and even the quality of packaging and shipping. Only the most accurate test can achieve the best quality. Quality is definitely upward lift force, and only to let customers feel at ease, and trust with each other in order to create extraordinary value of excellence. Our company manufactures high-quality and reliable products, and make good use of measuring instrument, hardness testing machine, vernier(Calipers), micrometer, and other test equipment to inspect the product's appearance, precision, strength and other quality-related test.