筛网结构有编织筛网、冲孔筛板，合同应注明。
Screen mesh structure can be braided screen mesh, punched screen deck (noted in the contract).
采用进口弹簧钢编织筛网和冲孔筛板，不会造成堵孔，使用年限长。
The sieve and punching sieve weaved with the imported spring steel, that cannot be clogged and with long operation life.
采用进口弹簧钢编织筛网和冲孔筛板，不会造成堵孔，使用年限长。
The sieve and punching sieve weaved with the imported spring steel, that cannot be clogged and with long operation life.
应用推荐