EG2A-2 workshop warehouse pipe exhaust fan low noise ve…

EG2A-2 workshop warehouse pipe exhaust fan low noise ventilation equipment power: 0.18KW voltage: 220V/380V speed: 2800r/min flow: 600-940m3/h full pressure: 80-60Pa noise: 57dB (A) EG energy-saving pipeline fan The EG series features low noise, large air volume, low power consumption and reason ----more

Calculation method for the area of ​​the top surfac…

1. Calculate the wall area: Decorative materials for walls (including cylinders) generally include paint, stone, wall tiles, wallpaper, soft packs, siding, baseboards, etc. When calculating the area, the materials are different and the calculation methods are different. The area of ​â ----more

Choose a premix and have a set

In the provinces where corn is abundant, soybean meal is easy to buy, and wheat bran is not lacking, long-term use of premixed materials in large-scale farms is undoubtedly a wise move. G2u China Feed Industry Information Network - based on feed, serving animal husbandry Premixed: endless, each sh ----more

How to choose the size of the lens

Note: As shown in the figure, the 4mm lens is very wide and the whole image can be seen. Everything but the details of the small thing 3 meters away is not clear enough, as the figure can only see the car. The 16mm lens looks far away. The car in the picture can be monitored very clearly. Even the ----more

How to carry out boiler transformation

We know that there may be some minor problems in the use of the boiler, then we need to consider the transformation of the boiler to make it work more efficiently. We know that there may be some minor problems in the use of the boiler, then we need to consider the transformation of the boiler to ----more

Teach you how to choose safety shoes

According to the statistics of the US Bureau of Labor, foot and leg protection: 66% of injured workers do not wear safety shoes, 33% wear protective shoes, and 85% of injured workers do not protect against hitting. Shoe parts. To protect the legs and feet from being dropped, rolled, sharp, molten m ----more

Disordered current main problem in the Hafen channel in…

Analysis of the Hafen channel industry problem China's fastener production accounts for a quarter of the global production, but most of the low-intensity, Hafen channel low-grade sub-products, of which the scale below 8.8 is about 45%-50 %, in the case of high raw material costs, the overcapac ----more