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