Place of Origin
Shandong, China
Material
ALLOY STEEL, Polypropylene
Frame Size
10FT, 12FT, 14FT, 15FT
design shape
rectangle, square or round
spring size
141mm,165mm, 178mm or required
safety cover
0.45mm PVC 20mm thicknes EPE
spring quantity
72pcs, 84pcs,96pcs or more