HVAC and duct access doors are designed to provide easy access to critical areas of ductwork and air handling when maintenance work is needed. These access doors are typically installed on the main sheet-metal duct. HVAC access panels come with a variety of options such as hinged and insulated. Our ... READ MORE
Fengze has the most powerful R&D team and advanced technology to provide customers with a full range of services, professional technical support and first-class products.Contact us with your idea ,leave the rest to us！ READ MORE
we are not only produce non-fire rated access doors ,fire rated access doors ,also we are producing acoustic and non acoustic access doors ，double doors ，beveled doors .Any other type of access doors ,if you have idea ,just contact us for discussion . We will design for you . READ MORE
1. Dress When going out, try to wear cotton, hemp and silk fabrics, and wear less chemical fiber clothing. Don't wear too tight and airtight clothes and trousers in order to show your figure, so as not to lose heat in time when sweating a lot and cause heatstroke. 2. Diet In summer, you can eat veg... READ MORE
1、 Environmental friendly air conditioner Environmental friendly air conditioner: use environmental friendly air conditioner cooling filter to continuously deliver clean cold air to the workshop, so that the workshop forms positive pressure, squeezes the high-temperature and muggy smell of the works... READ MORE
What is motivation? Baidu Encyclopedia: motivation refers to the way that leaders lead employees with encouragement. Encouraging employees can cultivate employees and improve their self-confidence. Encouraging employees can promote the smooth completion of work and ensure the quality of work. Ince... READ MORE
Under the epidemic, the market is depressed,but we have full production schedule , we are very happy. All these are attributed to the unremitting efforts of Fengze colleagues. After 15 years of continuous efforts by supplying our customers with good and stable quality products and on time deliver... READ MORE
The existence of zinc layer has brought some difficulties to the welding of galvanized steel. The main problems are: the increased sensitivity of welding cracks and pores, the evaporation of zinc and smoke, oxide slag, and the melting and destruction of zinc layer. Welding cracks, pores and slag inc... READ MORE
According to the structure, manufacturing and application of aluminum alloy products, the following principles shall be followed when selecting materials: 1. In terms of light weight, good strength, weldability, extrusion processability and maintenance are required; 2. In terms of service life, hi... READ MORE
1) For workshops (employees): the hygienic standard for noise in industrial enterprises stipulates that employees shall be exposed to noise for 8 hours, and the noise value of workshops shall not exceed 85dB (a). 2) For the plant boundary (surrounding residents): according to the class II standard ... READ MORE
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