Dear Khun Nutavut
Sorry to bore you with some small issues
We are facing issues with the sealing heads that you have made for us recently (see attached picture and invoices for your reference)
- In November 2014 , you have made sealing heads that are working perfectly : This is the one on the right
- In August 2016,
§ you have made 1 head (the large one on the left ) That is not working well when heating and film tent to stick on the material
§ Another head (the one in the middle) that is also not working well since film get sticky on it
§
These 2 head made in August 2016 looks like if they were made in different material (the large one has a “cooper” color and the small one is more like non stainless steel
So, I’m a bit confused, the first one made of SUS (material on your invoice) and seems more efficient than the 2 others
Do we have different material ?
Can you please have a look