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