MANUFACTURER DOSSIER
杭州宝临印刷电路有限公司 · Zhejiang
Baolin’s website is centred on two product families: single-sided control boards and remote-control carbon-film printed circuits. Its production narrative is about artwork, screen printing, punching, etching and inspection. For a buyer, the useful question is how the bare board will interface with the keypad, housing, components and acceptance test.
The report also mentions silver- and copper-paste through-hole boards; the introduction mentions nickel-plated and carbon-paste-filled products. These are named processes, not complete stacks or separately documented product examples. Obtain the interconnection specification before substituting paste-filled holes for a conventional plated-hole construction.
Supply a separate carbon artwork, contact geometry and copper-overlap requirements. Agree ink grade, curing, resistance measurement conditions, contact-force and wear acceptance with the intended keypad.
Supply the carbon layer separately from copper, solder mask and legend. Define the contact pattern, copper-to-carbon overlap, exclusions and registration datums. Include the mating conductive keypad, its location in the housing and the contact force used for acceptance. A photograph cannot supply these dimensions.
Agree the ink grade, cure requirements, test geometry, probe arrangement and resistance limit. Keep sheet resistance separate from the assembled contact’s measured resistance. Define the required actuation count and environmental conditioning with the intended keypad; no resistance, contact-life or humidity-test value is published for this reference.
The website lists remote controls and several appliance applications, but the appliance illustrations are application examples. They are not evidence that Baolin supplies complete remote controls or assembled consumer products. The two product galleries reuse several PCB images; those repetitions are not turned into extra products here.
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Specify copper and laminate, finished hole and outline datums, component-side markings, solder mask and the intended assembly thermal cycle. Agree electrical test coverage for the released netlist.
The manufacturer names a laser photoplotter, laser screen direct-imaging machine, automatic printing and punching lines, computerised hole inspection and a Yuzhou etching machine. Laser artwork or screen imaging is not laser drilling; the disclosure does not establish HDI microvias or an installed laser-drill line. The photographs do not specify current machine models, quantities or available machine hours.
Ask whether the released outline and holes will be punched, drilled or routed, how tooling is identified and maintained, who owns it, and what happens after a drawing revision. Set burr, registration and edge acceptance for the actual material. A general photograph of a punching line is not a tolerance guarantee.
For carbon printing, ask how artwork and screen revisions are tied to the production lot, how cure conditions are recorded, and which inspection detects contact misregistration. For paste-filled interconnections, request the fill process and electrical acceptance separately.
The quality page provides actual laboratory images. Its text does not provide a complete test matrix, calibrated ranges or an order-specific report. Agree the lot sampling, test method, conditioning and recorded result that must accompany your shipment.
The contact page names 杭州宝临印刷电路有限公司, Hangzhou Baolin Printed Circuits Co., Ltd., at No. 99 Shuangma Road, Jinma Industrial Park, Lin’an District, Hangzhou. It lists 0571-63802278, mobile 15314689771 and hzbl@vip.163.com. These are website-published details; mailbox control and a factory visit have not been tested.
A second email is printed “bl_ wlh@163.com” with a space. It is not silently converted into an assumed address. The CRM’s older QQ address is also not presented as an officially confirmed mailbox.
The company dates its origins to 1985. Its reports covering 2022 describe a relocation and expansion entering production in August 2018. Keep those dates separate. The introduction states 15,000 m² land, 18,000 m² buildings and ancillary space, while a headline uses 20,000 m² factory area. No reconciled floor-area value or available production capacity is inferred. The published million-m² annual claim is not a current slot commitment.
Zhejiang’s 2015 monitored-enterprise notice, 浙环函〔2015〕94号, lists the exact company in Lin’an, organisation code 14378089-2, row 36 on printed page 69, under monitored hazardous-waste-producing units. It corroborates a historical entity record, not current environmental clearance or PCB quality.
SEPCA’s 8 September 2023 notice names the exact company as a co-organiser of a PCB-worker competition/training activity. The notice also discusses a carbon-film PCB standard workshop. Co-organiser status does not establish authorship of that standard, compliance of these boards or present association membership.
The quality-integrity and social-responsibility reports were posted in May 2023, dated February 2023 and cover 1 January–31 December 2022. Their statements about certification, production history, customers and management are manufacturer disclosures for that period. They are not converted into a current UL file or ISO badge.
The download list names an anti-oxidation-liquid RoHS report dated 15 December 2018, a Sanqiu UVC-II-G11 solder-mask MSDS and a Kingboard KB-1150 REACH report dated 1 February 2019. These are titles linked to shared files. They do not establish this board’s laminate grade, a tested production lot, or an authorised material supply chain.
The gallery’s environmental-management, CQC, patent and honour images are historical, low-resolution copies. No current holder-and-scope issuer result has been established from them. Request the producing-site certificate and any product/model annex required for the order. A patent or a named customer logo is not a product qualification.
For a carbon-contact order, ask for the ink batch and controlled material specification, the agreed laminate grade, cure and test record, and traceability between the artwork revision and shipment. For an export order requiring recognition, obtain the current applicable issuer record and confirm the supplied construction falls within its scope.
Include board and netlist revision, quantity and repeat schedule, laminate and copper specification, outline and hole datums, mask and legend, packing and inspection deliverables. Agree the current producing site, tooling route and schedule with the same revision.
Add separate carbon artwork, contact and copper-overlap dimensions, mating keypad and force, ink requirements, resistance test method, cure requirements and durability acceptance. State whether any paste-filled interconnection is part of the released construction.
Reviewed 9 October 2026. Two source-backed product families are selectable; geometry and electrical values that the manufacturer does not disclose remain unknown. Use the reference to start a drawing review rather than to infer a tested final assembly.
Prepare the engineering brief →Original manufacturer pages and corresponding images were read independently from the Zhejiang government document and the association notice. Historical reports, regulatory lists and application illustrations retain their own scope; no current certification, test result or customer endorsement is inferred.
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