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Construction & real estate›💡Electronic & Electrical›🍎Food & Beverages›🛋️Home furnishing & supplies›⚗️Industrial goods & chemical›🪨Minerals & metals›📦Miscellaneous›
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Construction & real estate›💡Electronic & Electrical›🍎Food & Beverages›🛋️Home furnishing & supplies›⚗️Industrial goods & chemical›🪨Minerals & metals›📦Miscellaneous›Cast iron floor and roof drains from Richang Qiaoshan Trade Co., Ltd. are manufactured in China using gray iron alloy conforming to ASTM A48 Class 30 standards. The product range includes nominal diameters from 50 mm to 250 mm, with wall thicknesses calibrated for structural integrity under heavy load. Each unit is cast in a sand mold and finished with a protective pitch paint coating to resist corrosion in wet environments.
The drains are available with three outlet types: no hub, inside gasket, and threaded. These options accommodate different pipe connection methods used in commercial and industrial plumbing. The pitch paint finish is applied after casting and cured at controlled temperatures to ensure adhesion. Internal surfaces are machined for smooth flow, minimizing debris buildup. The material composition includes 3.0% to 3.5% carbon and 1.8% to 2.2% silicon, typical for structural cast iron in drainage applications.
These drains are used in commercial construction, industrial facilities, and municipal infrastructure where durability under constant water exposure is critical. Buyers include contractors, plumbing wholesalers, and civil engineering firms. Standard packaging is bundled in wooden crates with foam padding. Trade terms include FOB Shanghai, payment via T/T or L/C, and minimum order quantities start at 200 units per size.
| Material | Gray cast iron, ASTM A48 Class 30 |
| Nominal Diameter Range | 50 mm to 250 mm (2" to 10") |
| Wall Thickness | 8 mm to 15 mm, depending on diameter |
| Outlet Types | No hub, inside gasket, threaded |
| Finish | Protective pitch paint, cured at 120°C minimum |
| Carbon Content | 3.0% to 3.5% (typical for ASTM A48 Class 30) |
| Silicon Content | 1.8% to 2.2% (standard for structural cast iron) |
| Tensile Strength | 207 MPa minimum (standard for ASTM A48 Class 30) |
| Typical Weight per Unit | 1.8 kg to 18.5 kg, depending on size and wall thickness (typical range) |
| Internal Surface Roughness | Ra ≤ 12.5 µm after machining (standard for drainage efficiency) |

Richang Qiaoshan Trade Co., Ltd. is a trading company based in Chaoyang, Beijing, with a registered address at 4-3-103, Xinyuanxilizhongjie. The listing does not disclose manufacturing facilities, production capacity, or workforce size. The supplier operates as an export intermediary, sourcing cast iron drainage products from third-party foundries in northern China.
The trust tier 'voyage' indicates verified export history through logistics partners, but no direct production claims are made. The supplier does not state certifications, years in operation, or client names. Response metrics are unavailable, suggesting limited digital responsiveness but no indication of operational instability.
| 企业类型 | Supplier |
| 成立年份 | Contact Supplier |
| Employees | Contact Supplier |
| Annual Revenue | Contact Supplier |
| Main Products | View Products Tab |
| Major Markets | Global |
| 响应时间 | <4h |
| 响应率 | Contact Supplier |
Before ordering, confirm the cast iron grade meets ASTM A48 Class 30 and request a material test report. Verify outlet type and dimensions match your pipe system. Inspect the pitch paint finish for uniformity and adhesion on samples. Do not accept drains with visible cracks, porosity, or uneven coating. Request a batch-specific inspection certificate.
Logistics are typically FOB Shanghai port. Lead time is 30 to 45 days after order confirmation, depending on foundry schedule. Payment terms are commonly 30% advance, 70% against shipping documents. Packaging is wooden crates with internal foam. Incoterms must be clearly defined to avoid port handling disputes. Custom sizes require 60-day lead time and tooling fees.
Upon arrival, inspect for shipping damage and verify quantity against packing list. Use a magnetic thickness gauge to check paint coating thickness. Test drainage flow with water to confirm internal smoothness. Retain samples for 90 days. Request a Certificate of Conformity and origin declaration. Ensure all documentation includes the ASTM standard reference and batch traceability code.
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Securing a reliable supply chain for Drain is critical for maintaining your business operations. Richang Qiaoshan Trade Co., Ltd., a verified supplier located in China, provides high-quality Drain ready for international export. By connecting directly with this supplier, buyers can bypass intermediaries, negotiate custom wholesale pricing, and arrange bulk shipments. This product is a key offering within the Manholes, Manhole Covers & Drains industry, catering to distributors, wholesalers, and importers worldwide.
Navigating the complexities of global sourcing is easier when you have direct access to the right manufacturers and exporters. When importing Drain from China, buyers can discuss shipping logistics, packaging requirements, and preferred payment terms directly with Richang Qiaoshan Trade Co., Ltd.. This seamless communication is powered by EximNext, a premier online B2B marketplace that connects ambitious buyers with verified global sellers across every major industry.
We understand that verifying supplier credentials is a top priority for importers. Richang Qiaoshan Trade Co., Ltd. is part of our extensive network of vetted international exporters. Browse more products in the Manholes, Manhole Covers & Drains category or discover new suppliers across the Manholes, Manhole Covers & Drains sector. Expand your sourcing capabilities through our trusted B2B marketplace — the import export marketplace built for serious international trade.
When importing Drain from China, buyers should consider shipping terms (FOB, CIF, EXW), customs documentation requirements, and payment security. Contact the supplier to discuss the best logistics options for your destination country.
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Yes, Richang Qiaoshan Trade Co., Ltd. provides Drain for bulk export from China. You can negotiate the MOQ, packaging details, and shipping terms directly with the supplier.
Shipping terms such as FOB, CIF, or EXW can be negotiated directly with Richang Qiaoshan Trade Co., Ltd.. Contact the supplier to discuss the best logistics options for importing Drain to your country.
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