วัสดุ:Ddddddddd
ความทนทาน:Ddddddddddddddddddddddddd dddddddddddddddddd ddddddddddddddddddddddddd dddddddddddddddddd ddddddddddddddddddddddddd dddddddddddddddddd ddddddddddddddddddddddddd dddddddddddddddddd ddddddddddddddddddddddddd dddddddddddddddddd ddddddddddddddddddddddddd dddddddddddddddddd