Prodct:Manual slack adjuster Illustration:type1,type2,type3,type4,type5. Spline Dia: 1-1/2" Spline Teeth:10 Hole centres:a 127/12.7 b 152/12.7 c 178/12.7 d 203/12.7 Professional supplier of brake parts for commercial vehicles, specialized in brake chambers, brake valves, brake pads and shoes and slack adjusters. Our products have get the GS, CE, EMC and UL certificates and 100% meet the RoHS standards for EU market. Our quality management has passed the ISO9001:2000 approval. Bosheng products are exported to North America, South America, Europe, the South East Asia, East Asia, South Africa, Australia and the Middle East.