a.Q-railing tube, Handrail tubes b.Diameter 42.4 ... up to about 50% compared with stainless steel Handrail tube, Q-railing tube, Carbinox tube, Stainless steel composite pipe, Stainless ... steel handrailDescription of Q-Railing tubes:1) Carbinox is a unique stainless steel composite ... welcome all old and new customers!! Handrail tubes, Q-railing tube