本文件规定了类型、标称尺寸、尺寸和材料以及结构， 安装用于引导车辆的巴拿马楔块座椅的制造和标记要求 船的系泊和拖缆。它适用于通过巴拿马运河的船舶 通常由使用钢制牵引线的机车和/或拖船辅助。这些座位是给我的吗 楔块满足正常系泊要求和巴拿马运河要求。购买本文件时可获得的所有当前修订均包含在购买本文件中。

This document specifies the types, nominal sizes, dimensions and materials, as well as construction, manufacturing and marking requirements, for the seats for Panama chocks installed to lead the mooring and towing rope of a ship. It is applicable to ships passing through the Panama Canal, which are normally assisted by locomotives using steel towing wires and/or by tug boats. These seats for chocks meet normal mooring requirements and Panama Canal requirements.All current amendments available at time of purchase are included with the purchase of this document.