发布时间:2025-02-02 04:57:37
1、180°弯头按表2倍计算,45°按1/2计算;
2、R1.0DN弯头重量按表2/3计算;
3、90°弯头计算公式:
0.0387*S(D-S)R/1000
式中S=壁厚mm、D=外径mm、R=弯曲半径mm
90°弯头R=1.5D,及弯头的中心高度A=R=1.5*25.4*NPS。
衬塑弯头、UPVC弯头 不知道
宁波有一套室内面积53平米的两室一厅装修半包大概多少钱全包多少
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2025-02-02 04:57:37 2025-02-02 04:57:37 2025-02-02 04:57:37 2025-02-02 04:57:37 2025-02-02 04:57:37 2025-02-02 04:57:37 2025-02-02 04:57:37 2025-02-02 04:57:37 2025-02-02 04:57:37 2025-02-02 04:57:37 2025-02-02 04:57:37 2025-02-02 04:57:37