... UL, SGS 2,No MOQ 3,PCB manufacturer 4,Fast delivery:3-20days 5,good quality with good price ... for the round hole(punch)Board thickness for FR-4: less than1.0mm(40mil)1.0mm(40mil)Board thickness ... the square slot(punch)Board thickness less than 1.0mm for FR-4,CEM-3:0.8mm*0.8mm ... 0.2mm(±8mil)TypeDouble layer,multilayer,aluminum,ceramic,PTFEMaterialFr-4,CEM-1,CEM-3,High frequency boardProcessing thickness0. ...