Power Grip Ropes Crown Industries is the leading Polypropylene Ropes Manufacturer and Supplier and exporter based in Kolkata, offering services throughout India. The firm partners are Mr. Dinesh Agarwal and CA Sanjeev Agarwal, who has been in the manufacturing business of danline ropes for 11 years now. We also have Mr. Satyanarayan Agarwalla on board, who has a wealth of 40 years of experience.