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