Room 603, Haixiang Mansion, East Of Xiyuan Road, South Of Haihua Street, Binhai Economic Technologic, Weifang, Shandong
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详情
This kind of
collar up to the standard API Spec *1 b and SY/T********6
requirements, main specifications have 5/8/3/4 (SM), 3/4/7/8 t
(SM), 1/*1/8 7/8/1 T
(SM), T (SM) also can be customized according to user
requirements
