Kèo nhà cái 5ѧ仧ҵһϵе̨Ǻͺ˲ߵһͺػšɫͨȫ298ҵλ745ᷢչȱĸ߲˲ĿǰƽͬʱΪְԵIJʿ˶ʿ˫һѧƱҵṩס;ɹںͺзǹҵҵҵܹⷿһиı䷢еijƱõѡƱͶͻγɲҵ˵
һʲôծӴû£õij֤ٴʶνŲùڻծĹֻϷݵһϷ2014ȫ֧һʾҹͯλΪ197.9g/LλWHO㡱100-199g/L
ʮģǿ֯ס罨ίй滮ίйָչְƶָ㾭ͣʢڼ佫Ҳλĵһλ
ܵ˵½뵼˲ʹ2003ҽ豾רҵɵ·뼯ϵͳרҵ2017ȫֻ41Уˡɵ·뼯ϵͳרҵ2015йɵ·ҵΪ39.4мԱֻ14.1и߶˲ŹìͻʮΪǧȥ¥ҵϵҲʧ͵ԼеҲʾ˵ҺȻͲ5000Ԫܹˣ