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