... )Color: White, Gray, ect. Descriptions Of All Products: Items Descriptions MaterialPVC-U , PPRProductsPipelines for water supply ... BS4346, NBR5648, DIN8078 / 8077Machinesinjection machinesColorswhite and gray for PVC products , green ,grey, white and blue for PPR productsWorking ... Business Steps:1)Communication: customers interest in our products , discuss price , check sample quality2)Negotiation : ...