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Shandong Zhihua Pipe Industry Co., Ltd.
Make sure your supplier is a factory, not a trading company. Generally, factories offer faster delivery, lower prices, and more stable quality. While some trading companies may claim to be factories, it's easy to discern: most manufacturers only offer 1-2 types of products. If a supplier offers a wide range, they're most likely a trading company. Trading companies also have benefits: they can save time by offering a range of vetted products.
Make sure to purchase Grooved Fittings with FM approved and UL listed. FM approval signifies quality recognition, while UL listed products are recognized by insurers. In China, not all suppliers offer FM and UL certified products, and even those suppliers do may vary in their certification. FM and UL certifications are product-specific, so it's best to work with suppliers who have more certified products. Verify the certifications for each size from your supplier, or check on the FM and UL websites by yourself.
Request bulk samples before purchasing. International trade is uncertain, so it's wise to ask for samples from your supplier before buying. Ensure you ask for bulk samples, not just quality samples, to better understand the supplier's product quality.
Shandong Zhihua Pipe Industry Co., Ltd, as a professional foundry, specializes in the production of ductile iron grooved fittings and has a competitive number of certified products sizes. We welcome inquiries about our products and are happy to provide samples upon request.
