Qingzhou Hengri Metal Products Co., Ltd. Tel：0536-2133230 Fax：0536-2137228 Email：master@hansing.com.cn Add：1809 Tokyo Road, Economic Development District, Qingzhou, Shandong Url：www.hansing.com.cn p.c：262500
R
1/8
1/4
3/8
1/2
3/4
1
DN
6
8
10
15
20
25
L
3
30
35
40
11/4
11/2
2
21/2
4
32
50
65
80
100
60
70
