Where are your products manufactured?
Our products are manufactured in China through Shantou Tongyong Hardware Industrial Co., Ltd. (Tongyong Hardware). TONGYONG INDUSTRIES PTE. LTD. is the contracting and international business entity. Country of origin is determined according to applicable rules of origin and stated on the relevant shipping and customs documents.
What is the relationship between Tongyong Industries and Tongyong Hardware?
TONGYONG INDUSTRIES PTE. LTD. is the international contracting and business entity. Manufacturing is carried out through Tongyong Hardware, the manufacturing entity within the Tongyong business system based in China.
Is Tongyong Hardware ISO certified?
Manufacturing is carried out through Tongyong Hardware, which holds ISO 9001, ISO 14001, and ISO 45001 certifications within the scope stated on each certificate. Copies and certified scope details are available upon request.
How long has Tongyong Hardware been manufacturing?
Tongyong Hardware has manufacturing experience since 2003, with capabilities based in China and supported by global supply chain coordination.
How does the ordering process work, from drawing to production?
The process starts with a drawing or specification review, followed by DFM feedback, quotation, sample or prototype confirmation, and then production. We typically respond within 24–72 hours during the initial stage.
Can you support low-volume or small-batch production?
Yes. We support small batch CNC machining and low-volume production runs in addition to mass production, common for prototyping, product development, and early-stage market testing.
What tolerances can be achieved in custom metal manufacturing?
Achievable tolerances depend on process, material, and part geometry. As a general industry reference, standard CNC machining typically holds tolerances around ±0.05mm, with ±0.01mm or better achievable for high-precision components. Specific tolerances are confirmed during DFM review.
Do you sign an NDA to protect drawings and designs?
Yes — we're happy to sign an NDA before you share any drawings. Your files and project details stay confidential throughout the review and production process.
What happens if there is a quality issue after production?
We inspect at every stage — incoming materials, in-process checks, final dimensions, and pre-shipment. The exact protocol depends on your industry and part requirements, and we're happy to walk through it before your first order.
