1.good quality with competitive price 2.long service life 3.nice shape 4.CE, ISO9001 HQTY6-21 Full-Automatic Block Making Machine:Main Technical ... , to buffer the hydraulic cylinder when working; Uses integrated high-pressure and soft oil pipes, with easy installation;3) ... tamper head and the mould;5) Heavy-duty machine frame, which uses high-intensity steel and advanced heat treatment, is wear ...