* Helical wire diameter : 1.30mm - 1.50mm. * Coils per m2 : 100-225 Units. *Bonnell spring end ring : 62mm - 95mm. *Bonnell spring wire diameter 1.80mm - 2.40mm. *Bonnell spring turns : 4-7 turns. *Bonnell spring height :70-210mm. *Frame :round wire 4.5 - 5.00mm. *Packing : press packed ( with frame, 15-25 unit per pallet pack ) or roll packed ( without frame, 5 - 15 unit per roll )
