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
A
19
21
25
28
33
38
11/4
11/2
2
21/2
3
4
45
50
58
69
80
97
