... , and instruments. sinoscopewe produce all kinds of ENT surgical instruments, such as laparoscope, sinoscope, otoscope, and the related instruments.0° / Φ2.7 ... -051Sinoscope0° Φ4×175GD-052Sinoscope30° Φ4×175GD-053Sinoscope70° Φ4×176GD-074 Sinoscope 0° Φ2.7×175GD-075Sinoscope30° Φ2.7×175GD-076Sinoscope70° Φ2 ...