tubo (ЖD) tube трубка	L	ch1	ch	confez. package упак.	codice code код
6/4	21.5	12	8	50	36.531.0
8/6	22.5	14	10	50	36.532.0
10/8	25.5	16	11	25	36.533.0
12/10	30	18	14	20	36.534.0
15/12.5	34	22	17	10	36.535.0