Name of practical new pattern granular electrical conductors and non-electrical conductors separation device Patent No. ZL200720089238.1 Name of practical new pattern a kind of multi-stage herbs pulverizer Patent No. 200720093088.1 Name of practical new pattern a kind of three-stage wood flour machine Patent No. 200720093089.6 Name of practical new pattern a kind of two-stage and two-compartment wood flour machine Patent No. 200720093093.2 Name of practical new pattern a kind of triple dust catcher Patent No. 200720093091.3 Name of practical new pattern a kind of printed circuit board disassembling device Patent No. 200720093090.9 Name of practical new pattern a kind of printed circuit board pulverizer Patent No. 200720093087.7 Name of practical new pattern printed circuit board recycling wind pressure separator Patent No. 200720089239.6