Nối 2 đầu ren ngoài đồng

13mm – 13mm, 13mm – 9.6mm, 17mm – 13mm, 17mm – 17mm, 21 ngắn, 21 X 13 ngắn, 21mm – 13mm, 21mm – 17mm, 21mm – 21mm, 27mm – 13mm, 27mm – 17mm, 27mm – 21mm, 27mm – 27mm, 34mm – 21mm, 34mm – 27mm, 34mm – 34mm, 9.6mm – 9.6mm