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