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Anonymous users2024-01-24GB T 6491-1999 "Sawn Timber Drying Quality" standard specifies the drying quality grade and drying quality index of dried sawn timber and its inspection rules; Dry sawn timber (wool) for a wide range of applications.
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Anonymous users2024-01-23To use, of course, consider the local air moisture content, drying standards are one thing, production to consider the use of deformation, the difference between the north and the south, the coast and the interior are different.
Gaofuju network restores the furniture mall.
The wood itself contains a certain amount of moisture, so it is used in the production of furniture >>>More
Different regions, the air humidity is some differences, the humid area in the south of the air humidity is large, the air humidity is basically in sixty or seventy percent is more common, in the production of furniture, wood needs to be dried, the moisture content of the southern wood after drying is below 15%, the north is below 12%.
The moisture content of the national standard for parquet is 5-14%.
GB T3324 General technical conditions for wood furniture. >>>More
In addition to the door itself, the door lock is also the key to anti-theft, the state divides the anti-theft door lock cylinder into three levels: Level Anti-technical opening time Anti-vandal opening time Mutual opening rate Standard level A 1min 15min National Standard B grade 5min 30min National standard Super B grade 260 min 30min Enterprise standard Class A is the most primitive and most insecure lock cylinder, the owner's key is flat, only a single-sided single-row bullet slot, and some cross keys are also classified as Class A, Such a lock can be opened in about two or three minutes, and it will be faster if you are familiar with it. >>>More