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