ขนาด 1/2" x 2"(50mm), 3"(75mm), 5"(130mm), 6"(150mm),7"(170mm) ,8"(200mm),10"(250mm),12"(300mm),14"(350 mm ), 16" ( 400 mm ), 18" ( 450mm ), 20" ( 500 mm ), 22" (550 mm ),