
Zinc Coating 20g Cold Rolled Steel Galvanized H Beam C/Z Purlin. Customizable Dimensions: Length and thickness available as per request with thickness range 1.0-3.0mm. Wide Zinc Coating Range: Zinc content adjustable from 20 to 375g/m2 for varied corrosion resistance. Multiple Steel Standards: Complies with ASTM, JIS, GB, AISI, DIN, and BS standards. ISO 9001 Certified: Quality management system approved to ISO 9001:2008 with lab testing. Fast Delivery: Lead time within 15 workdays for both peak and off-peak seasons. Stable Quality Control: Strict control from pig iron manufacturing to final rolling and cooling. Flawless Surface Finish: High pressure water jets remove scales for a flawless surface. Versatile Applications: Suitable for ship plates, boiler plates, and structural building materials.