双头准确锯多少钱一台？哪里的好？

双头准确锯多少钱一台？哪里的好？准确锯的设备型号及其学术名称：

LJZ2-CNC-500×4200(5000)  铝门窗双头数控切割锯床

LJZ2-CNS-500×4200(5000)  铝门窗双头数显切割锯床

LJZ2-500×4200(5000)      铝门窗双头准确切割锯床

SJ06-3700A                铝塑门窗双角锯床（直线06锯）
Used for not only aluminum profile and curtain wall profile cutting ,but also comerconnector cutting.
Feeding system adopts imported linear guide pair,with high accuracy and long service life.
Right head feeding adopts hihg helical pitch ball screw -lead motion,with high accuratedriving locating and smooth working.
22.5° 45° and 90°cutting is available .
Imported carbide saw blade give accurate processing and hihg endurance.
Imported linear bearing motion pair ensured steady processing accuracy.
Saw blade rotate smoothly due to high accuracy main spindle.
Uniform sped feeding and smooth motion due to airdraulic damping cylinder.