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