Roller Chain, Sprocket, Pulley manufacturer / supplier in China, offering High-Efficiency Heat-Resistant Wear-Resistant Power Transmission Precise Short Pitch Nickel & Zinc Plated Driving Roller Chain (04-48) (A B Series), Robust Durable High-Precision Long-Lasting Power Transmission Short Pitch Nickel & Zinc Plated Driving Roller Chain (04-48) with Attachments, High-Strength Corrosion-Resistant Easy-Install Power Transmission Precise Short Pitch Nickel & Zinc Plated Driving Roller Chain (A B Series) with Attachments and so on.