德国采购需求：橡皮筋、弹性橡皮筋、橡皮筋、天然橡胶筋、弹性橡胶带、宽橡皮筋

I'm reaching out to explore your selection of rubber tubing, specifically interested in sizes of 8mm, 10mm, and 12mm with lengths of 3m and 5m. Elasticity is a key factor for my needs, as I'm looking for resistance levels akin to those used in sports equipment, such as resistance bands. It would be great to know what options you have available and if it's possible to arrange for samples. Additionally, I would like to gather more details about the material properties, the colors you offer, and any minimum order quantities that may apply. Your prompt response would be appreciated as I aim to finalize some sourcing decisions soon.