Type:Billiards hinge
Material:Cold-rolled steel
Finish:Nickel / gold plating
Door Thickness:4mm-6mm
Max Weight:3kg/2pcs
Features:1.Body is made of high quality cold rolled steel
2.Spring is made of Sk-7 carbon steel
3.Pass 75 pounds load test
4.Pass over 100000 open-close test
5.Pass salt and mist test for over 48 hours