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