Description
NINGBO DSW INDUSTRY CO.,LTD established in 1998. Our company possesses five production lines for production of various seamless gas cylinder.The annual production and sale for gas cylinders of below 20L for 600 thousand pieces, accounting for 90% domestic share in small size gas cylinder market. The recently set up new production line for 40L-80L emergency respirator, colliery escape capsule and refuge chamber has the annual production of 700 thousand pieces of cylinders. By the year 2015, the total specifications we do ascent to 120 types to meet different customers' requirement.
Our major products are oxygen cylinder, nitrogen gas cylinder, carbon dioxide gas cylinder, argon gas cylinder, other industrial gas cylinder, medical oxygen gas cylindersupply unit, etc., with wide application for fields of medical apparatus and instruments, engineering machinery, colliery rescue, gas industry, welding-cutting machinery, and chemical industry. Choose in the cylinder production 100% new high quality seamless steel pipe from Bao Shan Iron co., LTD (Baosteel).Starting from the raw material quality control, strictly control every step of the manufacturing process, analysis of sampling inspection, unqualified sampling products for the whole batch of detection, in order to ensure the quality of each bottle to do a good job of every step of detection.
The Total five working line make 3000 PCS per day for oxygen gas cylinder, argon gas cylinder, helium gas cylinder, Nitrogen gas cylinder, Co2 gas cylinder, N2O gas cylinder..The etc.We have a GB5099 ISO9809, TUV, CQM, EN1946, BV, DOT and TPED certificate.
From raw material inspection monitoring to the cylinder packing, strict control of every step
1. Raw material inspection: according to each batch of incoming material, adopt sampling detection, steel pipe for line detection
2. The bottle processing (the most important part) : the thickness of the hollow part is stick out part of the thickness of the 2 times, and to wash the bottom of the bottom of the bottle, the process of processing to enhance the quality of the cylinder, increase the service life of the cylinder.
3. The cylinder processing: high temperature heat treatment of steel cylinder first, then on the cylinder internal polishing.
4. Quality test: to blasting test of the cylinder, testing the yield stress of the cylinder and crevasse inspection, testing the quality of steel pipe.
5. The water pressure test: to test the water of the cylinder, and cleaning the cylinder internal water pressure test was carried on
So far our products are enjoying good markets at home and exporting to European and American countries, the Middle East countries, West Asia, as well as South and East Asia countries.
Complaint
