第1个回答 2022-08-27
SWC: S-STEEL; W-WIRE; C-CORBON 碳素弹簧钢丝
SWP: S-STEEL; W-WIRE; P-PIANO 琴钢丝,钢琴丝又分三个等级,SWPA,SWPB,SWPV
第2个回答 2022-06-01
SWC: S-STEEL; W-WIRE; C-CORBON 碳素弹簧钢丝
SWP: S-STEEL; W-WIRE; P-PIANO 琴钢丝,钢琴丝又分三个等级,SWPA,SWPB,SWPV
第3个回答 2022-08-28
SWC: S-STEEL; W-WIRE; C-CORBON 碳素弹簧钢丝
SWP: S-STEEL; W-WIRE; P-PIANO 琴钢丝,钢琴丝又分三个等级,SWPA,SWPB,SWPV
第4个回答 2022-08-28
SWC: S-STEEL; W-WIRE; C-CORBON 碳素弹簧钢丝
SWP: S-STEEL; W-WIRE; P-PIANO 琴钢丝,钢琴丝又分三个等级,SWPA,SWPB,SWPV
第5个回答 2022-08-28
SWC: S-STEEL; W-WIRE; C-CORBON 碳素弹簧钢丝
SWP: S-STEEL; W-WIRE; P-PIANO 琴钢丝,钢琴丝又分三个等级,SWPA,SWPB,SWPV