... target solar vacuum tubeCharcater feature:It apply the technology of Three-target Magnetron Sputtering ,it has the advantage of High absorption,High efficiency ,High temperature .The ... , Φ58-1600mm, Φ58-1800mm, Φ58-2000mm, Φ58-2100mm.Outer tube diametre:Φ47±0.7mm; thickness: δ=1.6mm Φ58±0.7mm ... pieces/yearDelivery time: Within 2 weeks after paymentPayment : TT Three-high All-glass Solar Vacuum Tube