Old standard Q/ZB121Rigid couplingThe corresponding model of the XINLAN machinery was announced and displayed. This is the national standard in 1973. It is divided into Type I and Type II. The appearance is the same, so the frame of the product is also the same!According to the large outer diameter, there are 160 mm, 200 mm, 235 mm, 290 mm, and 390 mm are large. The jia seat is 160 yuan, 270 yuan, 450 yuan, 800 yuan, 1750 yuan.It's a retail jia!If there are batches, the company will sell to you in a reasonable format, the company sales (Liu) the company's physical mapProducts are affordableCoupling manufacturers!