Roller chain is the most common and widely used industrial chain on the market, CHOHO standard roller chain mainly has A series, B series, reinforced, cotter pin and other series, in line with ISO, DIN, ASME/ANSI and other standards. Select high-quality materials to optimize the process, the product has the characteristics of high strength, high fatigue, high wear resistance, high precision, impact resistance, etc., among which the tensile strength reaches the minimum tensile strength of ISO standard 1.1-1.4 times, fatigue strength reaches the minimum dynamic load strength of ISO standard 1.15-1.7 times. Products are widely used in construction machinery, agricultural machinery, port machinery, ship machinery and other famous conveying, transmission and lifting machinery and equipment.