平顶山SOP for plate flat welding flange
平顶山Blind flange bl
平顶山Threaded flange tr
平顶山Flat welding flange with neck
平顶山Neck butt welding flange
Add: B3 Workshop, Jinze town industrial zone,Qingpu,Shanghai
Tel: 021-59261579
Email: panhy@sh-wakamatsu.com
