Ningbo Liangmao Standard Parts Co.,Ltd has recently successfully completed a large‑volume export order for high‑strength bolt‑nut‑washer assemblies, serving a large‑scale steel‑structure warehouse complex construction project in Southeast Asia. This project covers multiple connected storage buildings and places high demands on fastener safety and anti‑rust performance under tropical high‑temperature and high‑humidity climate conditions.
The overseas client is a local well‑known steel‑structure engineering contractor. Before formal order placement, they carried out strict supplier qualification audit, reviewing our factory production equipment, quality‑control system, past similar‑project references and lab‑testing capacity. The project specified grade 8.8 and 10.9 hex bolts and matched heavy‑duty nuts and flat washers, with hot‑dip‑galvanized surface finish to resist coastal atmospheric corrosion. The buyer required full material test reports, heat‑treatment records and batch inspection certificates for the whole shipment.
Our technical team held multiple rounds of technical communication with the client’s engineering department. We confirmed detailed drawing parameters, material grade selection, coating technical indicators, sampling‑test standards and document‑delivery requirements. Before mass production started, we manufactured pre‑production samples and sent them overseas for client laboratory verification. After sample performance fully satisfied project specifications, we officially launched batch manufacturing.
Considering long‑distance ocean transportation and local humid storage environment, we adopted export‑grade moisture‑proof and rust‑proof packaging solutions. Goods were classified by specification, packed into reinforced cartons with desiccant, with clear specification‑marking labels on each package.
