三亚SOP for plate flat welding flange
三亚Blind flange bl
三亚Threaded flange tr
三亚Flat welding flange with neck
三亚Neck butt welding flange
Add: B3 Workshop, Jinze town industrial zone,Qingpu,Shanghai
Tel: 021-59261579
Email: panhy@sh-wakamatsu.com
