免费无毒黄片_娇妻的欧美交换视频_毛片点击进入在线播放_午夜精品国产AV,亚洲日韩色在线高淯v,依依成人网在线观看,九一av在线,老熟妇性色老熟妇性,久久电影午夜伦高清A片,黄片免费国产,av无码免费无禁网站久久

���v�h(hu��n)���W(w��ng)

�Ϻ������y�T���޹�˾

�P(gu��n)ע�ȣ�19739 ���S�ȣ�49 ���vָ��(sh��)��19863

ֱͨʽ����ֹ���y

�˚⣺1829 �l(f��)���r�g��2011-01-13 14:51

�P(gu��n)�I�~���y�T

�a(ch��n)Ʒ��̖��

��(y��ng)���I(l��ng)��ˮ̎��

�a(ch��n)Ʒ�r�����h

���˽����a(ch��n)ƷԔ��,��Ո

 
  �a(ch��n)Ʒ���Q�� ֱͨʽ����ֹ���y
  �a(ch��n)Ʒ��̖�� H42B
 
 
   
 ï¿½ï¿½ï¿½P(gu��n)�a(ch��n)Æ·
 ï¿½ï¿½ï¿½ï¿½Ö¹ï¿½ï¿½ï¿½y
 ï¿½ï¿½ï¿½ï¿½Ê½ï¿½ï¿½ï¿½mֹ���y
 Ö±Í¨ï¿½ï¿½ï¿½ï¿½Ö¹ï¿½ï¿½ï¿½y
 ï¿½T�F����ʽֹ���y
 
ֱͨʽ����ֹ���y��Ԕ��(x��)�Y�ϣ�

��Ҫ������ϣ�

������Q
�y�w
�y��
�ܷ�Ȧ
H42B-25

�T�F
�T�

̼�
���ϺϽ�
H42B-40


 


����Ҏ(gu��)����


���Q����
PN��MPa��

ԇ򞉺��PS��MPa��
��������P��MPa��
�����ضȣ��棩
�m�ý��|(zh��)
���w
�ܷ�
2.5
2.75
3.75
2.5
≤150
��,����Һ

��Ҫ�ߴ磺

PN
DN
H
D
D1
D2
b
f
Z-φd


2.5
��������MPa

4.0

32
120
135
100
78
18
2
4-18
40
130
145
110
85
18
3
4-18
50
140
160
125
100
20
3
4-18
65
160
180
145
120
22
3
8-18
80
185
195
160
135
22
3
8-18
100
210
230
190
160
24
3
8-23
125
250
270
220
188
28
3
8-25
150
300
300
250
218
30
3
8-25
200
380
360
310
278
34
3
12-25
ֱͨʽ����ֹ���y


�P(gu��n)�ڡ�ֱͨʽ����ֹ���y ���uՓ
�]�䣺 �ܴa�� ���Ñ�ע��

�W(w��ng)���uՓ�H������_(d��)���˿���,�������������v�W(w��ng)ͬ�����^�c(di��n)���C��������,��

��(y��ng)������