Contact us
Choose a category below so we can get back to you as quickly as possible.
池底半徑=30/2=15米 底面積=3.14×15×15=706.5平方米 底面周長=3.14×30=94.2米 貼瓷磚面積=706.5+94.2×1.2=819.54平方米
We and our partners use cookies and other technologies to analyze traffic and optimize your experience. View more info and control your cookies settings at any time in our Cookies Policy.