The reporter then learned from the Municipal Quality Inspection Institute that protective doors, anti-smashing doors, etc. are not equivalent to anti-theft doors. Security doors are divided into A, B and C three. The A-level safety factor is the lowest. At present, most of the security doors in the market are Class A. One of their performance indicators is that they cannot be opened with abnormal opening within 15 minutes. The reporter visited the market and found that some so-called security doors cost only four or five hundred yuan. In response, the quality supervision department reminded that currently on the market 1mm thick steel panel 7200 yuan per ton, door frame hot rolled steel plate 6500 yuan per ton. If it is up to the national standard, the cost of a steel plate for a security door needs a minimum of 500 yuan, plus other costs such as locks, fillers, and spray paint. The cost price should generally not be less than 600 yuan. The qualified security door framed weight should be 60 kg or more. Professionals in the quality inspection department have warned that the quality of anti-theft doors below this price and weight is difficult to guarantee, and consumers should carefully consider. Armcoltherm Si-5(-60℃~280℃)
Characteristics of silicone oil:
1. Silicone oil: Made from organic silicon compounds, common ones include polysiloxane, polydimethylsiloxane, etc.
Polydimethylsiloxane, silicone oil, si use in open system LIAONING ARMCO TECHNICAL LUBRICANTS CO., LTD. , https://www.armcoltherm.com
3. High-temperature silicone oil: It has high high-temperature resistance and is suitable for thermal conduction applications in high-temperature environments.
Recently, the CCTV "Weekly Quality Report" exposed a number of unqualified companies and products including Jinghai County Gongnong Furniture Factory and Tianjin Shengli Anti-theft Door Factory, and used these companies to produce unqualified security doors with pure wood. Disclosures were made. Yesterday, the Jinghai County Bureau of Quality and Technical Supervision of this Municipality has conducted surprise inspections on the two manufacturing companies involved in the region, and sealed up allegedly unqualified products and raw materials. At present, another company will also be further traced.
Release Date: 2007/5/14 16:00:02