1.started in 1993.2.providing 7, 000, 000pcs fusion sleeves/yearxxxxx range: asia4.A:STANDARD SLEEVE: fusion sleeve(60mm/50mm/40mm): 0.03USD/PCS(factory price)B:RIBBON SLEEVE(40MM): fusion sleeve(one pin): 0.12USD/PCS(factory price)fusion sleeve(two pin): 0.3USD/PCS(factory price)