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