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