ladder type 6-inch single sink horizontal type: 158 * 102mm(梯型6寸单槽横款：158*102mm) ladder type 6-inch single sink vertical type: 102 * 152mm(梯型6寸单槽竖款：102*152mm) ladder type 7-inch single sink horizontal type: 178 * 127mm(梯型7寸单槽横款：178*127mm) ladder type 7-inch single sink vertical type: 127 * 178mm(梯型7寸单槽竖款：127*178mm) ladder type 8-inch single sink horizontal type: 203 * 152mm(梯型8寸单槽横款：203*152mm) ladder type 8-inch single sink vertical type: 152 * 203mm(梯型8寸单槽竖款：152*203mm) ladder a4 single sink horizontal: 297 * 210mm(梯型A4单槽横款：297*210mm) ladder a4 single sink vertical: 210 * 297mm(梯型A4单槽竖款：210*297mm) ladder type 7-inch double slot horizontal section: 178 * 127mm(梯型7寸双槽横款：178*127mm) ladder type 7-inch double slot vertical type: 127 * 178mm(梯型7寸双槽竖款：127*178mm) ladder type 8-inch double slot horizontal section: 203 * 152mm(梯型8寸双槽横款：203*152mm) ladder type 8-inch double slot vertical type: 152 * 203mm(梯型8寸双槽竖款：152*203mm) ladder a4 double slot horizontal section: 297 * 210mm(梯型A4双槽横款：297*210mm) ladder a4 double slot vertical: 210 * 297mm(梯型A4双槽竖款：210*297mm) u-shaped 6-inch horizontal section: 100 * 150mm(U型6寸横款：100*150mm) u-shaped 7-inch horizontal section: 178 * 127mm(U型7寸横款：178*127mm) u-shaped 7-inch vertical: 127 * 178mm(U型7寸竖款：127*178mm) u-shaped 8-inch horizontal section: 203 * 152mm(U型8寸横款：203*152mm) u-shaped 8-inch vertical: 152 * 203mm(U型8寸竖款：152*203mm)

the base is 15mm wide, and the other three sides are widened by 9mm(底座宽15mm，另外三个面都是加宽9mm)