Storage PLA straw need to be stored in dry, cool environment. Away form the fire and avoid sunshine Shelf-Life 12 Month Packing Suitable for both unwrapped, and individually paper or OPP film bag wrapped,as your request. Here the following is some common pac...
During the course of the decade (1890-1900) over 21,000 versts of new railway line were laid. The railways created a big demand for metal (for rails, locomotives and cars), and also for increasing quantities of fuel—coal and oil. This led to the development of the metal and fuel ...