GB 18224-2000 Safety code for the bridge type grab ship unloader

GB/T 18224-2008 Safety code for the bridge type grab ship unloader

GB/T 699-1999 Quality carbon structural steels GB/T 985-1988 Basic forms and sizes of weld grooves for gas welding manual arc welding and gas-Shielded arc welding GB/T 986-1988 Basic forms and sizes of weld grooves for submerged arc welding GB/T 1228-1991 High strength bolts with large hexagon head for steel structures GB/T 1229-1991 High strength large hexagon nuts for steel structures GB/T 1230-1991 High strength plain washers for steel structures GB/T 1231-1991 Specifications of high strength bolts with large hexagon head, large hexagon nuts, plain washers for steel structures GB/T 3811-1983 Design rules for cranes GB 4053.1-1993 Safety requirements for fixed steel vertical ladders GB 4053.2-1993 Safety requirements for fixed steel oblique ladders GB 4053.3-1993 Safety requirements for fixed industrial protective railings GB/T 5117-1995 Carbon steel covered electrodes GB/T 5118-1995 Low alloy steel covered electrodes GB/T 5905-1986 Cranes—Test code and procedures GB/T 5972-1986 Wire rope for lifting appliances—Code of practice for examination and discard GB/T 6067-1985 Safety rules for lifting appliances GB/T 8110-1995 Welding wires for gas shielding arc welding of carbon and low alloy steels GB/T 8918-1996 Steel wire ropes GB/T 12469-1990 Quality assurance of welding—Requirement for fusion welding joint of steel and classification for imperfection GB/T 14957-1994 Steel wires for melt welding GB/T 17495-1998 Specifications for the harbour portal crane GB 50150-1991 GB 50254-1996 GB J147-1990 JT/T 295-1995 Repairing technique rules for the quayside container crane JT 5022-1986 JT J244-1995