... construction, Tee handle, 1pcExtension bar, 2pcs sre Ventana operator, Jalousie window operatorDescription:1. Material: aluminium or zinc alloy construction2. Weight: aluminium ... in Ningbo, Zhejiang prov.. Our mainly products are window latch, sliding lock, pulley, handles, operators, Joint corners etc...Meanwhile, most of our ... find good products to suitable for your markets. Casement window Operator