Furniture companies generally use water-based milky white glue (polyvinyl acetate glue). In recent years, the standard detection of the bamboo and grass registration system has rarely detected unqualified free formaldehyde. However, furniture companies will use epoxy resin commonly known as " iron glue " when special-shaped structural parts with high adhesive strength are required . It has excellent characteristics such as strong adhesion and low shrinkage. It usually includes component A and group B. Minute. Component A is generally a mixture of epoxy resin and diluent, and component B is generally a curing agent. " Iron glue " diluent may contain benzene, toluene, xylene, and must contain VOC substances. Some cheap epoxy resin adhesives are actually epoxy - phenolic resin adhesives. The glue contains phenolic resins and may contain free formaldehyde. In addition, some glue manufacturers add formaldehyde solution as a preservative to the product and cause free formaldehyde to exceed the standard.    In this regard , the inspection and quarantine department reminds relevant enterprises to strictly implement the raw material testing and control requirements of the bamboo and grass registration system , regularly sample and verify the raw materials, and also include auxiliary materials with a small amount of consumption into the scope of testing and monitoring. For more furniture information , go to http://news.gojiaju.com/
Seamless Heat Exchanger Steel Tubes/Heat Exchanger Steel Tube are produced by Cold Drawn Seamless Processing,
with steel grade of Low Carbon Steel, Medium Carbon Steel, Alloy Steel, Stainless Steel, etc.
Technical Standards as
ASTM A179, ASTM A192, ASTM A210, ASTM A213, ASTM A334, ASTM A335 etc
DIN17175, EN10216-2, GB/T 5310, BS3059, etc.
Size:
OD 12.7 to 114.3mm
WT 0.5-12.5mm
Length: according to Customer PO, U bending tube is available.
Applications:
Shell & Heat Exchangers
Boilers,
Condensors,
Coolers,
Finned Tubes
Seamless Heat Exchanger Steel Tubes Seamless Heat Exchanger Steel Tubes, Carbon Steel Heat Exchanger Tubes, Superheater Steel Tubes, Heat Exchanger Tubes Torich International Co.,Ltd--The Steel Tube Maker , http://www.chinasteeltubepipe.com
