A: yes, we could provide the free samples transportation fee cold coil on conditons it is available in stocks, however, the the transportation fee is borne by buyer.
How could you guarantee your products?

A: Each piece of transportation fee cold coils is manufactured by certified workshops, inspected by Lenser piece by piece according to national QA/QC standard. We also could issue the warranty to customer to guarantee the quality.

Steel grade	Yield strength MPa	Tensile strength Mpa ≥	After Breakage Percent Elongation (L0=80mm, b=20mm)%≥	rb, c ≥	nb, c ≥
Nominal Thickness mm
<;0.70	0.70~<;1.0	1.0~<;1.6	≥1.6
DC04(St14, St15)	120~210	270	36	38	39