stainless steel roller chain: 1.304 material 2.316 material 3. ... 05B,06B,08B,10B,12B,16B,20B,24B,28B,32B,40B,48B,56B,64B,72B.The straight side plate ... also available.roller chains,transmission chains,industrial chainsdriving chain,heavy duty chain:1advanced technology, advanced equipment2high technical capabilities3employ experienced technical ... . American standard 50-1R stainless steel roller chain