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Ϻųţ޹˾

English

Ϻųţ޹˾

ͨʹõĺͿѡʹõı־Ŀ硶 1ʾֳֶߴ㹻ӦָʾŹرշļͷ򸽼“”

1 ͨ÷ŵı־Ŀ GB/T12220-1989
Ŀ ־
1 ͨDN
2 ѹPN
3 ѹϴ
4 쳧ƻ̱
5 ļͷ
6 ܷ⻷棩
7 ¶ȣ棩
8 ƴ
9 ѹ
10
12 ׼
13 ¯¯
14 ڼϴ
15 λ
16 ϴ
17
18 Աӡ
19 
20

ͨ÷ŵľ־涨£

  1. 1е 1-4 DZʹõı־ DN≥50mm ķӦڷ DN<50mm ķڷϻDZɲƷ߹涨
  2. 1е 5 6 ֻеij෧ű׼д˹涨ʱDZʹõı־Ӧֱڷ弰
  3. ෧ű׼û涨򡶱 1 7-19 ǰҪѡʹõı־Ҫʱɱڷ
  4. ڼѹڷϵı־ 1Ĺ涨ӦУ  ý ѹ
  5. ˮı־ 2Ĺ涨־ɱڷҲɱڱ
  6. ȫı־ 3Ĺ涨
2ˮı־GB/T12249-1989
Ŀ ʹõı־
1 Ʒͺ
2 ͨ
3 ѹ
4 쳧ƺ̱
5 ָʾͷ
6 ߹ѹ
7 ߹¶
Ŀ ѡʹõı־
1
2 ѹ
3
4 ˮ¶
5 
3ȫı־
Ŀ ϵı־
1 ͨ
2
3 쳧ƻ̱
4 ӲֵijߴѹͬʱӦָļͷ
Ŀ ϵı־
1 Ƶ߹¶
2 ѹ
3 ݵı׼
4 쳧Ļ׼ͺ
5 ϵڻ׼ʵĶ
6
7 ߶
8 ѹٷ

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