China Guangdong Haida Equipment Co., Ltd. company news

The temperature change rate of a constant temperature and humidity test chamber refers to the conversion rate between two given temperatures measured at the center of the chamber, expressed in ℃/min. It is one of the key parameters for measuring the performance of a constant temperature and humidity ... Read More

In order to strengthen the CCC certification supervision of the electric bicycle industry and assist in the fire safety rectification of electric bicycles in the province, on the afternoon of March 20th, the Jiangsu Provincial Market Supervision Bureau held an online administrative guidance and ... Read More

Office chair quality accidents frequently occur, how should "office workers" choose high-quality office chairs? 1.When selecting an office chair, try sitting on it and moving it from various angles to see if there is a risk of tipping over; 2.For office chairs with gas springs, observe whether there ... Read More

As staying up late has become a habit of people, more and more people have difficulty sleeping well. Cervical spondylosis, periarthritis of the shoulder, and lumbar disc herniation are well-known geriatric diseases that are gradually affecting young people. What else can we do to improve sleep ... Read More

Battery safety is very important in new energy vehicles, and all must be strictly checked. The battery must be resistant to high temperature, extrusion, explosion-proof and short circuit. Let me explain to you which devices need to be used for battery detection to detect them? Battery extrusion test ... Read More

On the occasion of your birthday, I would like to extend my warm congratulations to you! Birthday means a new beginning and a chance to seize life again. 1、 Longevity star admission With vigorous steps and happy mood, He's coming, he's coming They're coming to me!!! Wearing the birthday star crown ... Read More

When you want to dry something, what do you think of first? The cooking oven, The blower, or the Dehydrator? They are suitable in different places. As to some materials in laboratory, you can't choose one randomly because high temperature will damage the properties of materials. So, I want to ... Read More

To judge whether the adhesive performance of the adhesive tape is qualified and whether it meets the use requirements, the inspection and control are mainly carried out from the three indicators of peel strength, initial adhesion and holding adhesion. The peel strength refers to the force required ... Read More

In our daily life, the application of the tensile machine is also very extensive. It is mainly used in the tensile, compressive, bending and shearing mechanical performance tests of metal and non-metal materials. In addition, the tensile machine is equipped with a wide range of accessories, and can ... Read More

1. Quantitative inspection of paper What is quantitative testing? It is determined by the basic test standard of the unit area quality of paper and paperboard. This is one of the most basic rules of carton. This is also an important part of the inspection. The accuracy of carton quantitative ... Read More