GB/T 39600-2021《人造板及其制品甲醛释放量分级》
2021-04-08 16:59:57
188
http://c.gb688.cn/bzgk/gb/showGb?type=online&hcno=F5BCAEB886FB1417F12395B61AFDB178
http://c.gb688.cn/bzgk/gb/showGb?type=online&hcno=F5BCAEB886FB1417F12395B61AFDB178