... .quality assurance 3.low price. Opening machineThis machine is the modest SBT-550 opener with automatic backing system. ... is our new products which can replace of wooden roll machine. Now after using in china market, it is welcomed by ... /m5,dust baskate 500mm6,press cotton pack 140*9.857,fan machine 1.5KW*2900r/m8,chain 19.5mm9,power 15-18KW11 ...