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