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1上坡弯头做法与公式
2水平弯头制作与公式
3下坡弯头制作与公式
4三通弯头制作
5 90度垂直弯头
6 90度成品弯头制作
7 90度变径弯头制作
8变径三通制作
9 一边变径大小头
10两边变径大小头
11桥架堵头制作
12三个三十度组成90度
1345度组成90度上翻弯头
1445度组成90度下翻弯头(反弯)
1545度组成90度水平弯头
1645度组成90度下翻弯头
1745度组成上翻弯头精确计算
18垂直三通弯头制作(2面漏斗)
19漏斗弯头制作
20桥架斜三通弯头制作
21桥架上下爬坡精确计算(实例)
2245度组成下翻弯头精确计算(实例)
23过桥弯头精确计算(实际例子)
24 45度组成90度精确计算(实例)
25左右水平弯头计算(实例)
26多层桥架弯头制作有计算
27多层桥架制作与计算二
28任意角度弯头制作
29桥架三面大漏斗弯头制作
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