1. Pneumatic control ,easy to operate 2. Suitable for mass production of insulating glass and curtain walls 3. Main and auxiliary motor all adopt American advanced technology, stable power,large sealant output 4.Integrated structure of base material pump, curing agent pump and proportioning pump ,avoid leaking sealant 5. Special device in base material pump and curing agent pump , avoid running idle 6. Special check valve in proportioning pump to make the sealant coming out more fluently , suitable for all kinds of sealant ,avoid incomplete mixing .7. Multichannel filtering device, eliminate the impurities into the pump body.8. International popular type unique gun ,to make the mixing uniformity .Stainless steel mixing splindle ,precise and durable .9.The check valve is made of high wear-resistant materials, directional stability, long service life .10.Equipped with safety valve ,guarantee the operating safety .11. The rotating arm is equipped with a universal device, flexible and portable .