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