Richang Qiaoshan Trade Co., Ltd. Focus on Gravity Casting / Centrifugal Casting / Die-Casting / Stamping / CNC Spinning / Injection Molding / Laser Cutting / CNC Bending gravity Casting Centrifugal Casting Die-Casting Stamping CNC Spinning Injection Molding Laser Cutting CNC Bending We are recognized as a leader in the conception, design, manufacturing, and marketing of gravity casting, centrifugal casting, die-casting, stamping, CNC spinning, injection molding, laser cutting, and CNC bending in the drain, waste, And vent products for commercial and residential buildings, waterworks, and municipal areas, plus all types of OEM and ODM production. Our advantage: Supply full set roof drainage and floor drainage products in 1 stop. Include cast iron soil pipe and fittings, flexible coupling and heavy-duty coupling, roof drain, floor drain, downspout boots, downspout nozzle, hangers, riser clamps, and accessories. Strong product development ability. We can OEM and ODM for customers.