correct slope for shower floor

1:51

9:28

10:16

4:16

1:17

9:12

8:22

7:10

21:12

12:38

کوتاه

32:25

32:25

2:11

3:20

10:18

2:29

12:47

16:56

10:37

4:26

12:39

14:55

17:28

6:24

20:26

15:38

17:12

5:06

25:21

25:44

19:27

17:57

14:20

10:38

8:02

13:05

2:15

8:39