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SIS SS 78 20 13-1979 Shipbuilding Propeller shafting Propeller fitting with cone without key Assembly《造船 螺旋桨轴系 无键、带锥筒的螺旋桨组装件 总成》.pdf 2

SIS SS 78 20 13-1979 Shipbuilding Propeller shafting Propeller fitting with cone without key Assembly《造船 螺旋桨轴系 无键、带锥筒的螺旋桨组装件 总成》.pdfSIS SS 78 20 13-1979 Shipbuilding Propeller shafting Propeller fitting with cone without key Assembly《造船 螺旋桨轴系 无键、带锥筒的螺旋桨组装件 总成》.pdf

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SIS SS 78 20 12-1979 Shipbuilding Propeller shafting Design and assembly directions《造船 螺旋桨轴系 设计和组装指导》.pdf 6

SIS SS 78 20 12-1979 Shipbuilding Propeller shafting Design and assembly directions《造船 螺旋桨轴系 设计和组装指导》.pdfSIS SS 78 20 12-1979 Shipbuilding Propeller shafting Design and assembly directions《造船 螺旋桨轴系 设计和组装指导》.pdf

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SIS SS 78 20 11-1979 Shipbuilding Heating of oil in cargo tanks《造船 暖气石油液货船》.pdf 4

SIS SS 78 20 11-1979 Shipbuilding Heating of oil in cargo tanks《造船 暖气石油液货船》.pdfSIS SS 78 20 11-1979 Shipbuilding Heating of oil in cargo tanks《造船 暖气石油液货船》.pdf

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SIS SS 63 63 28-1991 Telecommunications equipment Private Branch Exchanges (PBXs) Transmission requirements for digital PBXs (A-law) having digital interfaces with exchange lines.pdf 43

SIS SS 63 63 28-1991 Telecommunications equipment Private Branch Exchanges (PBXs) Transmission requirements for digital PBXs (A-law) having digital interfaces with exchange lines.pdfSIS SS 63 63 28-1991 Telecommunications equipment Private Branch Exchanges (PBXs) Transmission requirements for digital PBXs (A-law) having digital interfaces with exchange lines.pdf

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SIS SS 63 63 27-1991 Telecommunications equipment Private Branch Exchanges (PBXs) Common technical requirements《电信设备 专用分组交换机（交换机）通用技术要求》.pdf 9

SIS SS 63 63 27-1991 Telecommunications equipment Private Branch Exchanges (PBXs) Common technical requirements《电信设备 专用分组交换机（交换机）通用技术要求》.pdfSIS SS 63 63 27-1991 Telecommunications equipment Private Branch Exchanges (PBXs) Common technical requirements《电信设备 专用分组交换机（交换机）通用技术要求》.pdf

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SIS SS 63 63 26-1991 Telecommunications equipment Private Branch Exchanges (PBXs) Signalling requirements in interface toward extension line《电信设备 专用分组交换机（交换机）接口传出交换线信令要求》.pdf 4

SIS SS 63 63 26-1991 Telecommunications equipment Private Branch Exchanges (PBXs) Signalling requirements in interface toward extension line《电信设备 专用分组交换机（交换机）接口传出交换线信令要求》.pdfSIS SS 63 63 26-1991 Telecommunications equipment Private Branch Exchanges (PBXs) Signalling requirements in interface toward extension line《电信设备 专用分组交换机（交换机）接口传出交换线信令要求》.pdf

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SIS SS 63 63 25-1991 Telecommunications equipment Private Branch Exchanges (PBXs) Signalling requirements in analogue interface for incoming exchange line《电信设备 专用分组交换机（PBXs）传入交换线.pdf 24

SIS SS 63 63 25-1991 Telecommunications equipment Private Branch Exchanges (PBXs) Signalling requirements in analogue interface for incoming exchange line《电信设备 专用分组交换机（PBXs）传入交换线.pdfSIS SS 63 63 25-1991 Telecommunications equipment Private Branch Exchanges (PBXs) Signalling requirements in analogue interface for incoming exchange line《电信设备 专用分组交换机（PBXs）传入交换线.pdf

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SIS SS 63 63 24-1991 Telecommunications equipment Private Branch Exchanges (PBXs) Signalling requirements in analogue interface for outgoing exchange line《电信设备 专用分组交换机（PBXs）传出交换线.pdf 30

SIS SS 63 63 24-1991 Telecommunications equipment Private Branch Exchanges (PBXs) Signalling requirements in analogue interface for outgoing exchange line《电信设备 专用分组交换机（PBXs）传出交换线.pdfSIS SS 63 63 24-1991 Telecommunications equipment Private Branch Exchanges (PBXs) Signalling requirements in analogue interface for outgoing exchange line《电信设备 专用分组交换机（PBXs）传出交换线.pdf

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SIS SS 421 05 01-1988 Standard voltages for transmission and distribution of electric energy《电能输电和配电标准电压》.pdf 4

SIS SS 421 05 01-1988 Standard voltages for transmission and distribution of electric energy《电能输电和配电标准电压》.pdfSIS SS 421 05 01-1988 Standard voltages for transmission and distribution of electric energy《电能输电和配电标准电压》.pdf

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SIS SS 421 01 68-1991 Short-circuit current calculation in three-phase a c systems《三相交流系统的短路电流计算》.pdf 3

SIS SS 421 01 68-1991 Short-circuit current calculation in three-phase a c systems《三相交流系统的短路电流计算》.pdfSIS SS 421 01 68-1991 Short-circuit current calculation in three-phase a c systems《三相交流系统的短路电流计算》.pdf

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