Buy the stone please take away the sample inspection

The installation of some stone in the home is magnificent. This has already been agreed by the public. However, due to the wide variety of stone products and the different prices, the public has little knowledge of their quality and prices, and it is difficult to guarantee the benefits. Yesterday, the head of the Industry and Commerce Branch of Yubei District reminded the public that there are six points to pay attention to when purchasing stone.
The industry and commerce departments learned that some of the frauds in the sales of stone products mainly include the use of domestic stone to impersonate imported stone, the use of artificial stone as a natural stone (artificial stained board posing as marble), and the order form does not specify the width of the stone and does not indicate The method of calculation of the origin, processing fee (cutting fee, edging fee, thickening bar, etc.) of the stone material; the processing fee is calculated repeatedly; the inferior quality is used as a good quality, or a high-quality sample is used as a bait to provide a product with a low secondary cost; Foot length (customer set the width of 60 cm, and the operator provides only 50 cm width of the goods); deliberately not rub the surface of the stone dust, so that consumers can not see the quality of the stone, whether there is a break.
To this end, Yubei District Commerce and Industry Branch reminded the public that when buying stone, we must pay attention to the following six points: carefully identify the contract, read the terms of the contract, require the operator to specify the origin of the stone in the contract, place names, specifications (must indicate width) Whether it is natural; Second, indicate the calculation method of processing fees; Third, take the sample, check the inspection; Fourth, seriously inspection, check whether the stone is broken, is consistent with the sample before payment; V. Or check the quality inspection report and related materials of imported stone; VI. Compare and compare the goods, and then compare the prices in-depth to understand the market before purchasing.

Marble door price

Chemical Industry Mass Flow Meter

Sealand is a professional supplier of Chemical Mass Flow Meter, Chemical Mass Flowmeter, Chemical Flowmeter, Chemical Flow Meter, Chemical Coriolis Meter, ATEX, IECEx & CE approved.


The meter can work with a pulse receiver(Count). The connection is as follows. The resistance value is up to the cable length & the max. input pulse frequency of receiver. Current 10mA is suitable for most receivers; however, you can reduce the resistance value when the cable is long. The max. current could be 50mA. Please use the fixed frequency output function to check if the cable length & resistance value is suitable.

Please check following items before operation, and operate according to relevant rules. a) If the meter is damaged during shipment and installation;
b) If the voltage is same as marked on nameplate;
c) If the fuse is correct;

d) If the meter is grounded properly.
e) If the Meter SN on the nameplate of sensor and transmitter are the same.
If everything is fine, please open all valves, make the pipeline full of liquid and then power on the meter for warm-up for 20min before operation. Finally, conduct zero calibration after first start, and shall do it again if the meter is moved to another site.
Preparation for zero calibration:
a) Power on the meter for approximately 20min for warm-up;
b) Run the process fluid through the sensor until the sensor temperature reaches the normal process operating temperature.
c) Close the shutoff valve downstream from the sensor.
d) Ensure that the sensor is filled with fluid and the process flow has completely stopped.


Chemical Mass Flow Meter, Chemical Mass Flowmeter, Chemical Flowmeter, Chemical Flow Meter, Chemical Coriolis Meter

Zhejiang Sealand Technology Co., Ltd. , https://www.sealandflowmeter.com