三门峡SOP for plate flat welding flange
三门峡Blind flange bl
三门峡Threaded flange tr
三门峡Flat welding flange with neck
三门峡Neck butt welding flange
Add: B3 Workshop, Jinze town industrial zone,Qingpu,Shanghai
Tel: 021-59261579
Email: panhy@sh-wakamatsu.com
