Please use the following information to create a value stream map for KE$.$ Please provide the actual drawing with explanations. Also, please point out isseus in KE's operation and give suggestions for improvments. Please integrate the Kanban system into your suggestions. Thank you.

KE$,$ a stock company, develops and produces filter systems for both stationary and mobile applications. KE has staffs of approx. $2,800$ and a turnover of almost $400$ million Euro. KE would like to conduct a value stream analysis for their oil filters for buses, which are produced for twelve factories of different customers at an annual volume of $192,000.$ The entire production runs three shifts on $240$ days per year with an hour's break per shift.

The basic body of a KE oil filter consists of a milled aluminium die$-$casting body housing. In addition, the finished product contains another twenty$-$four purchased parts. In general, the product needs to passe through six production processes: The cast piece is received, milled and washed, subsequently assembled in a two$-$step assembly process and finally shipped as described in the following detailed process description:

$1.$ Shipping The filters are shipped in pallets with $5$ layers of $60$ pieces each. On average, the preparing and loading of each pallet, the printing and allocating of the respective shipping documents takes $30$ minutes. In addition, the receipt and taking into storage of the goods transferred from production approximately take another $10$ minutes. This results in an operation time per piece of $8$ seconds $(40$ min $/5/6).$ The process is also used for other products, $1/2$ manpower is allocated to the oil filters. This results in a cycle time of $16$ seconds.

Note that the shipping personnel works in single shifts $(7$ hours$).$

$2.$ Assembly The process finishes with the aligning and mounting of the plastic components of the casing, which takes one worker $156$ seconds. In the case of two identical workstations with one worker each, the cycle time is $78$ seconds.

$3.$ Pre$-$assembly All small parts are assembled in the cast housing, which takes one worker $144$ seconds. As two identical workstations are used $($one staff works for one workstation$),$ the cycle time is $72$ seconds.

$4.$ Washing The milled cast parts in containers of $20$ pcs$.$ are automatically washed in continuous processes of $15$ minutes each. Division of the processing time by the number of containers results in a cycle time of $45$ seconds.