you may encounter this kind of situation that you are in question about product quality before placing a large order. We , of course, can understand the way you are anxious about. In order to wipe off your doubts before concluding an order between us, we can send you a sample freely in advance lest the final products make you disappointed. We can ensure the sample is in accordance with the primary product including the thickness of zinc layer, pipe thickness, as well as other details about steel pipes. Briefly speaking, you can put assurance on our samples. There will be no accidental matters about product quality.
We always try to do our best to ensure the quality of products. Our products have very strict quality inspection by professionals so as to secure users' actual application purposes. We are committed to a series of testing system involving the procurement of raw materials, pipe processing, as well as the late period of packaging and shipment of finished products. With reference to the common steel tubes in the steel market, we strictly follow the specific production standards, in order to meet your various actual purposes.