Shenyang Longyuan Enterprise Group | Address: Rm 1408, Block B, Donghuan In'l Building. No.62 Yunfeng Bei Str,Tiexi Dist, Shenyang 110021, China 
www.sy-longyuan.com | Send Inquiry | Phone: +86-(24)-25850220
Shenyang Longyuan Enterprise Group is a manufacturer of polyester mat and bitumen waterproof membranes. Our products include asphalt shingles, roof underlayments, waterproof sheets, self-adhesive memb more...