Pingxiang Ksource recently exported a batch of Laboratory Rings Dixon Rings 300L !

Each item we weight before the shipment as we strictly control the quantity.

For this product, we shall pay high attention to when the fixed of weight of products when convert to the volumne as the cubic meter or litter of products.

And my factory the bulk density for one litter, with strictly checked the kilograms of each litter by the litter drum.

You can rest assured to buy from us .