1.Extruder Main motor: Siemens China 2.Relay: ABB 3.converter:Delta,Pioneer,CHNT, Schneider or customize. 4.Dyer: hot air circulation system save cost & electric. 5.Machine material: stainless steel. 6.Guarantee Time: 2 year 7.We supply basic formula when you order our machines and send our engineer for installation trial run and training your workers 8.Certificate: CE, TUV,BV.