Jiangsu Changlong Technologies Co., Ltd is one of the world's leading companies of loading arms and wharf equipments with a high reputation of COSCO brand loading arms. Our services include design, manufacturing, installation and maintenance of following categories of products: * Marine Loading Arm, * Railcar & Truck Loading Arm, * QC/DC(Quick Connect/Disconnect Coupler) * ERC (Emergency Release Coupler) System * Twin Sealed Guideway Valve * Gangway/Quick Release Hook Supported by COSCO Group we offer customers products with advanced technology and qualified certificates: ISO 9001:2000, API and ASME. Our clients include SINOPEC, CNPC, CAOSC, ESSO, SHELL, TOTAL, ARC, ELF, BP, BASF, FW, PCC, MEC, BTT, ABB and many other famous brand companies.