screen type: Derrick,Swaco,Kemtron,Brandt and so on size: 700X1050, 697X1053mm mesh material: stainless steel (304,316,316L) Derrick shale shaker screen(PMD type)Pyramid screens Shengjia enjoy first-class equipment and technology to offer first-class products. Pyramid screens are the replacement products of flat screens. The effective area is 125% to 150% of flat screens. Without changing the ...