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