Stainless steel pipes, steel pipes, steel pipe production, metal materials, stainless steel plates, plastic particles, plastic products, mold materials, hardware tools and accessories, auto parts wholesale and retail, stainless steel pipes and pipe fittings processing, self-operated and agent import and export business of various commodities and technologies. General items: sales of metal products; manufacturing of auto parts and accessories; wholesale of auto parts; retail of auto parts; manufacturing of motorcycle parts; wholesale of motorcycles and parts; retail of motorcycles and parts; processing of mechanical parts and parts; sales of mechanical parts and parts; manufacturing of lighting fixtures; sales of lighting fixtures; mold manufacturing; mold sales