... ). Material Available: Ductile iron QT450, ASTM A536 65-45.12, ASTM 8620, ASTM 8630, ASTM A148 grade 90-60, ASTM A216 70-36 grade WCB ... quality as the factory's lifeWe are:1. Real factory with about 20 year's history and are licensed to export ... , providing competitive price.2. Factory with about 200 workers and 40 seniors, equipped with CNC milling and turning machines, CNC Lathes ...