... and pattern Specifications1) Ply rating, 2 pr or 4pr (2) Color, Black(3) Max load , 300kg(4) Max pressure,30P.S.I ... capacity, have vulcanizer 20units ,every month can make 2.00,000 pieces( 7 ) Product features, use advanced capsule vulcanizer instead ... 6x2 2.50-4 3.50-4 2.50-8 3.50-6 3.50-8 3.50-7 3.50-5 4.00-4 4.00-6 4.00-7 4.00-8 ... 5.00-6 5.00-8 6.50-8 12x1.75 14x1.75 12x 2 ...