Fibreboard, also known as MDF, is a wood-based panel made of wood fiber or other vegetable fiber, which is coated with urea-formaldehyde resin or other suitable adhesive. Adhesives and/or additives can be applied during the manufacturing process. The fiberboard has the advantages of uniform material, small difference in longitudinal and transverse strength, and is not easy to crack, and has wide application. It takes about 2.5 to 3 cubic meters of wood to make 1 cubic meter of fiberboard, which can replace 3 cubic meters of sawn timber or 5 cubic meters of logs. The development of fiberboard production is an effective way to comprehensively utilize wood resources.
The disadvantage of the fiberboard is that there is a netting on the back surface, which causes the surface area of ​​the two sides of the plate to be different. After the moisture absorption, the plate is warped and deformed due to the difference in expansion force; the surface of the hard plate is hard, the nail is difficult, and the water resistance is poor. Dry fiberboard, while avoiding certain disadvantages, is costly.
40m Electric Laser Distance Meter
The JRTMFG Laser Measure Tool is an advanced measuring tool apply for indoor measurement as well as for outdoor construction sites, which has different measurement modes including single measurement, continuous measurement (with Min/Max function), area/ volume measurement and Pythagoras Measurement. JRTMFG Laser Measurement Tool is a Class II laser product with less than 1mW power output. Measuring range covers from 0.15 to 40m.the measurement accuracy of +/- 2mm is achieved. The backlit LCD is easy to read and even in dark environments. There are 2 bubble levels installed for precise vertical and horizontal alignment of the laser. The default reference point can be set from the front or the rear of the tool. With this portable distance meter you can easily set up in meter/inch/foot. Up to 20 records can be saved and retrieved. The tool also has the mute button, and the functions of add/subtract measurements and self-calibration.The JRTMFG Laser Distance Measurement provides an easier and faster way to meet the needs of precise measurements. Due to its compact design, it can be easily pack in a bag or jacket pocket. Support oem Laser Rangefinder, welcome to send inquiry.
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Chengdu ZT Electronics Technology Co., Ltd. , https://www.lasermeasuretool.com