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