久久久久人妻一区精品色欧美,性抽搐视频,老熟女免费,妓女性色无码

　With the development of society, wires and cables have become an indispensable part of our life. I believe that we all hope to use safe and reliable products with guaranteed quality.

　　So how can we ensure the reliability of wires and cables during use? May wish to take a look at the following testing items, all of which are to ensure the orderly progress of product inspection and provide the most powerful basis for the quality assurance of the final product.

　　HD-B604-S computerized universal test machine is professionally specialized in plastic film, composite, soft packaging materials, plastic hose, adhesive, protective film, composite cover, diaphragm, non-woven fabric, rubber, paper and other products of tensile, peeling, tear, bonding, puncture force, pull force and other performance tests. It is an indispensable testing equipment for physical testing, teaching research, quality inspection and so on.