孟加拉采购需求：低温容器，液氮冷冻机，不锈钢液氮容器，不锈钢液氮罐，液氮钢瓶，液氮杜瓦瓶

We are looking to procure a biobank system designed specifically for storing 0.25 ml bull semen. The unit should have a total capacity of around 0.45 to 0.5 million samples and be capable of operating efficiently in liquid nitrogen (LN2). The design should incorporate a wide mouth positioned on the side for ease of access during usage. In terms of materials, we require the use of 304 stainless steel to ensure durability and resistance to corrosion. The system should accommodate 112 canisters, with a total of 5 layers of goblets for effective storage. Additionally, it should feature a wheel-based rotary system along with other standard provisions to facilitate optimal operation. Please provide the relevant specifications and pricing information.