The Bulwark EU Type Towing Chock produced by Sinostar Marine Equipment complies with the Chinese standard ZG230-450.

The NS2589 bulwark chock is made of cast steel, and the surface is cleaned to SA2.5 in accordance with Swedish standard SIS 05 59 00, and is coated with a rust-proof primer. Therefore, the surface is very smooth, and with no burr or sharp edge, which helps to reduce the friction of mooring ropes.

NS2587 Bulwark Mounted Mooring Chock is a special type of hawse hole at a vessel’s bow, which is designed for temporary mooring. NS means Norsk standard or Norwegian Standard, a standard as JIS, DIN, GB, etc. This standard has four kinds of chocks NS2587.

The ISO 13728 Panama Chock Type A is a robust steel fitting designed for safe and efficient mooring line handling on the deck of large ships. Manufactured from high-quality cast steel, it provides a designated pathway for mooring lines, ensuring smooth operation.

The bulwark towing chock also known as EU type towing chock is installed on the bulwark. The bulwark towing chock is the towing fittings applied for the towing purpose by towing lines.

A panama chock is a special type of hawse hole at a vessel's bow and designed as per the mooring requirements set by Panama Canal Authority.