JT/T 770-2009 High strength shale ceramsite lightweight aggregate for highway en...

行业标准2023.07.20

JT/T 771-2009 Technical conditions for unbonded steel strand stay cable.1范围JT/T...

行业标准2023.07.20

JT/T 772.2-20101范围JT/T 772.2规定了公路管养、车辆通行费收费及服务区等专业机构生产、管理和服务的单项定员及全部定员的计算方法。JT/T...

行业标准2023.07.20

JT/T 772-2010 Highway labor force quota.1范围JT/T 772规定了公路劳动定员所涉及的人员术语及其定义。JT/T 77...

行业标准2023.07.20

JT/T 774-2010 Technical norms of automobile air-conditioning refrigerant recover...

行业标准2023.07.20

JT/T 776.1-2010 Basalt fiber and product for highway engineering-Part 1: Basalt...

行业标准2023.07.20

JT/T 776.2-2010 Basalt fiber and product for highway engineering-Part 2: Basalt...

行业标准2023.07.20

JT/T 776.3-2010 Basalt fiber and product for highway engineering-Part 3: Basalt...

行业标准2023.07.20

JT/T 776.4-2010 Basalt fiber and product for highway engineering-Part 4: Basalt...

行业标准2023.07.20

JT/T 777-2010 Automatic testing system of road braking friction coefficient.1范围J...

行业标准2023.07.20