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