Non-standard screw factory in Wenzhou, Wenzhou non-standard screws custom specifications screws wholesale prices

Non-standard screw factory in Wenzhou, Wenzhou non-standard screws custom specifications screws wholesale price of high-quality non-standard screws selection procedure: a: measuring diameter, inferior thin and short, significantly higher than the qualified non-standard screws lost a lap. More surprising it is inferior even on non-standard screws spring washers are not. Spring washer mainly from the pressing action, the lack of spring washers expansion screws, very easy to fixed prison. Two: look at the appearance, genuine screw through the surface treatment process, high gloss, no smooth trachoma interface. The poor quality of the process rough screw thread shallow, glitches and more angular width varies non-standard screws, thread groove is too shallow, uneven thread, such as poor quality non-standard screws, if used on furniture, it is easy to slide wire or fracture, basic on "one-off product." Longwan Ming shaped screw factory Address: Wenzhou Puzhou Street New River Village Road 727-1-related non-standard screw factory recommended: http: //www.wzmtlm.com/product_show_4240.html