Company TROPSS (Shanghai) Industry Service Co,.Ltd. As Professional Industry Fastener Solution Supplier,We offer High Quality Products, On time delivery, flexible Minimum Order quantity, and professional fastener consultation, proper application suggestion, and customized production, modeling,design, cost down replacement solution for the industry clients, patent products and quality control and analysis, consignment stock and VMI for respected client, scheduled delivery. integrated logistic operation solution, quick flexible response, .....can and will benefit our client all of the world!