NATURAL RUBBER CUP LUMP FOR DUMMIES

They're hanged on bamboo stem for drying, the rubber sheets are place into an oven of dimension of about 4m wide by 8m depth by 6m height and keep there for three to 5 days is dependent upon the thickness of the sheet.  A :  You will get totally free samples from us or taking our previous SGS Reports as reference or set up SGS right before lo